261669760

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:181

約数の個数: 192

約数和(自身を含む): 716284800

約数和(自身を除く): 454615040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 109, 110, 121, 124, 128, 155, 160, 176, 218, 220, 242, 248, 310, 320, 341, 352, 436, 440, 484, 496, 545, 605, 620, 640, 682, 704, 872, 880, 968, 992, 1090, 1199, 1210, 1240, 1364, 1408, 1705, 1744, 1760, 1936, 1984, 2180, 2398, 2420, 2480, 2728, 3379, 3410, 3488, 3520, 3751, 3872, 3968, 4360, 4796, 4840, 4960, 5456, 5995, 6758, 6820, 6976, 7040, 7502, 7744, 8720, 9592, 9680, 9920, 10912, 11990, 13189, 13516, 13640, 13952, 15004, 15488, 16895, 17440, 18755, 19184, 19360, 19840, 21824, 23980, 26378, 27032, 27280, 30008, 33790, 34880, 37169, 37510, 38368, 38720, 43648, 47960, 52756, 54064, 54560, 60016, 65945, 67580, 69760, 74338, 75020, 76736, 77440, 95920, 105512, 108128, 109120, 120032, 131890, 135160, 148676, 150040, 153472, 185845, 191840, 211024, 216256, 218240, 240064, 263780, 270320, 297352, 300080, 371690, 383680, 408859, 422048, 432512, 480128, 527560, 540640, 594704, 600160, 743380, 767360, 817718, 844096, 1055120, 1081280, 1189408, 1200320, 1486760, 1635436, 1688192, 2044295, 2110240, 2162560, 2378816, 2400640, 2973520, 3270872, 4088590, 4220480, 4757632, 5947040, 6541744, 8177180, 8440960, 11894080, 13083488, 16354360, 23788160, 26166976, 32708720, 52333952, 65417440, 130834880, 261669760]

約数ペア:

[(1, 261669760), (2, 130834880), (4, 65417440), (5, 52333952), (8, 32708720), (10, 26166976), (11, 23788160), (16, 16354360), (20, 13083488), (22, 11894080), (31, 8440960), (32, 8177180), (40, 6541744), (44, 5947040), (55, 4757632), (62, 4220480), (64, 4088590), (80, 3270872), (88, 2973520), (109, 2400640), (110, 2378816), (121, 2162560), (124, 2110240), (128, 2044295), (155, 1688192), (160, 1635436), (176, 1486760), (218, 1200320), (220, 1189408), (242, 1081280), (248, 1055120), (310, 844096), (320, 817718), (341, 767360), (352, 743380), (436, 600160), (440, 594704), (484, 540640), (496, 527560), (545, 480128), (605, 432512), (620, 422048), (640, 408859), (682, 383680), (704, 371690), (872, 300080), (880, 297352), (968, 270320), (992, 263780), (1090, 240064), (1199, 218240), (1210, 216256), (1240, 211024), (1364, 191840), (1408, 185845), (1705, 153472), (1744, 150040), (1760, 148676), (1936, 135160), (1984, 131890), (2180, 120032), (2398, 109120), (2420, 108128), (2480, 105512), (2728, 95920), (3379, 77440), (3410, 76736), (3488, 75020), (3520, 74338), (3751, 69760), (3872, 67580), (3968, 65945), (4360, 60016), (4796, 54560), (4840, 54064), (4960, 52756), (5456, 47960), (5995, 43648), (6758, 38720), (6820, 38368), (6976, 37510), (7040, 37169), (7502, 34880), (7744, 33790), (8720, 30008), (9592, 27280), (9680, 27032), (9920, 26378), (10912, 23980), (11990, 21824), (13189, 19840), (13516, 19360), (13640, 19184), (13952, 18755), (15004, 17440), (15488, 16895)]