21426993280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{3989}}^1$

素因数の和:4135

約数の個数: 256

約数和(自身を含む): 64465632000

約数和(自身を除く): 43038638720

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 109, 110, 112, 128, 140, 154, 160, 176, 218, 220, 224, 280, 308, 320, 352, 385, 436, 440, 448, 545, 560, 616, 640, 704, 763, 770, 872, 880, 896, 1090, 1120, 1199, 1232, 1408, 1526, 1540, 1744, 1760, 2180, 2240, 2398, 2464, 3052, 3080, 3488, 3520, 3815, 3989, 4360, 4480, 4796, 4928, 5995, 6104, 6160, 6976, 7040, 7630, 7978, 8393, 8720, 9592, 9856, 11990, 12208, 12320, 13952, 15260, 15956, 16786, 17440, 19184, 19945, 23980, 24416, 24640, 27923, 30520, 31912, 33572, 34880, 38368, 39890, 41965, 43879, 47960, 48832, 49280, 55846, 61040, 63824, 67144, 69760, 76736, 79780, 83930, 87758, 95920, 97664, 111692, 122080, 127648, 134288, 139615, 153472, 159560, 167860, 175516, 191840, 219395, 223384, 244160, 255296, 268576, 279230, 307153, 319120, 335720, 351032, 383680, 434801, 438790, 446768, 488320, 510592, 537152, 558460, 614306, 638240, 671440, 702064, 767360, 869602, 877580, 893536, 1074304, 1116920, 1228612, 1276480, 1342880, 1404128, 1535765, 1739204, 1755160, 1787072, 2174005, 2233840, 2457224, 2552960, 2685760, 2808256, 3043607, 3071530, 3478408, 3510320, 3574144, 4348010, 4467680, 4782811, 4914448, 5371520, 5616512, 6087214, 6143060, 6956816, 7020640, 8696020, 8935360, 9565622, 9828896, 12174428, 12286120, 13913632, 14041280, 15218035, 17392040, 17870720, 19131244, 19657792, 23914055, 24348856, 24572240, 27827264, 28082560, 30436070, 33479677, 34784080, 38262488, 39315584, 47828110, 48697712, 49144480, 55654528, 60872140, 66959354, 69568160, 76524976, 95656220, 97395424, 98288960, 121744280, 133918708, 139136320, 153049952, 167398385, 191312440, 194790848, 196577920, 243488560, 267837416, 278272640, 306099904, 334796770, 382624880, 389581696, 486977120, 535674832, 612199808, 669593540, 765249760, 973954240, 1071349664, 1339187080, 1530499520, 1947908480, 2142699328, 2678374160, 3060999040, 4285398656, 5356748320, 10713496640, 21426993280]

約数ペア:

[(1, 21426993280), (2, 10713496640), (4, 5356748320), (5, 4285398656), (7, 3060999040), (8, 2678374160), (10, 2142699328), (11, 1947908480), (14, 1530499520), (16, 1339187080), (20, 1071349664), (22, 973954240), (28, 765249760), (32, 669593540), (35, 612199808), (40, 535674832), (44, 486977120), (55, 389581696), (56, 382624880), (64, 334796770), (70, 306099904), (77, 278272640), (80, 267837416), (88, 243488560), (109, 196577920), (110, 194790848), (112, 191312440), (128, 167398385), (140, 153049952), (154, 139136320), (160, 133918708), (176, 121744280), (218, 98288960), (220, 97395424), (224, 95656220), (280, 76524976), (308, 69568160), (320, 66959354), (352, 60872140), (385, 55654528), (436, 49144480), (440, 48697712), (448, 47828110), (545, 39315584), (560, 38262488), (616, 34784080), (640, 33479677), (704, 30436070), (763, 28082560), (770, 27827264), (872, 24572240), (880, 24348856), (896, 23914055), (1090, 19657792), (1120, 19131244), (1199, 17870720), (1232, 17392040), (1408, 15218035), (1526, 14041280), (1540, 13913632), (1744, 12286120), (1760, 12174428), (2180, 9828896), (2240, 9565622), (2398, 8935360), (2464, 8696020), (3052, 7020640), (3080, 6956816), (3488, 6143060), (3520, 6087214), (3815, 5616512), (3989, 5371520), (4360, 4914448), (4480, 4782811), (4796, 4467680), (4928, 4348010), (5995, 3574144), (6104, 3510320), (6160, 3478408), (6976, 3071530), (7040, 3043607), (7630, 2808256), (7978, 2685760), (8393, 2552960), (8720, 2457224), (9592, 2233840), (9856, 2174005), (11990, 1787072), (12208, 1755160), (12320, 1739204), (13952, 1535765), (15260, 1404128), (15956, 1342880), (16786, 1276480), (17440, 1228612), (19184, 1116920), (19945, 1074304), (23980, 893536), (24416, 877580), (24640, 869602), (27923, 767360), (30520, 702064), (31912, 671440), (33572, 638240), (34880, 614306), (38368, 558460), (39890, 537152), (41965, 510592), (43879, 488320), (47960, 446768), (48832, 438790), (49280, 434801), (55846, 383680), (61040, 351032), (63824, 335720), (67144, 319120), (69760, 307153), (76736, 279230), (79780, 268576), (83930, 255296), (87758, 244160), (95920, 223384), (97664, 219395), (111692, 191840), (122080, 175516), (127648, 167860), (134288, 159560), (139615, 153472)]