261985680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1741}}^1$

素因数の和:1790

約数の個数: 240

約数和(自身を含む): 1010917440

約数和(自身を除く): 748931760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 19, 20, 22, 24, 30, 33, 36, 38, 40, 44, 45, 48, 55, 57, 60, 66, 72, 76, 80, 88, 90, 95, 99, 110, 114, 120, 132, 144, 152, 165, 171, 176, 180, 190, 198, 209, 220, 228, 240, 264, 285, 304, 330, 342, 360, 380, 396, 418, 440, 456, 495, 528, 570, 627, 660, 684, 720, 760, 792, 836, 855, 880, 912, 990, 1045, 1140, 1254, 1320, 1368, 1520, 1584, 1672, 1710, 1741, 1881, 1980, 2090, 2280, 2508, 2640, 2736, 3135, 3344, 3420, 3482, 3762, 3960, 4180, 4560, 5016, 5223, 6270, 6840, 6964, 7524, 7920, 8360, 8705, 9405, 10032, 10446, 12540, 13680, 13928, 15048, 15669, 16720, 17410, 18810, 19151, 20892, 25080, 26115, 27856, 30096, 31338, 33079, 34820, 37620, 38302, 41784, 50160, 52230, 57453, 62676, 66158, 69640, 75240, 76604, 78345, 83568, 95755, 99237, 104460, 114906, 125352, 132316, 139280, 150480, 153208, 156690, 165395, 172359, 191510, 198474, 208920, 229812, 250704, 264632, 287265, 297711, 306416, 313380, 330790, 344718, 363869, 383020, 396948, 417840, 459624, 496185, 529264, 574530, 595422, 626760, 661580, 689436, 727738, 766040, 793896, 861795, 919248, 992370, 1091607, 1149060, 1190844, 1253520, 1323160, 1378872, 1455476, 1488555, 1532080, 1587792, 1723590, 1819345, 1984740, 2183214, 2298120, 2381688, 2646320, 2757744, 2910952, 2977110, 3274821, 3447180, 3638690, 3969480, 4366428, 4596240, 4763376, 5458035, 5821904, 5954220, 6549642, 6894360, 7277380, 7938960, 8732856, 10916070, 11908440, 13099284, 13788720, 14554760, 16374105, 17465712, 21832140, 23816880, 26198568, 29109520, 32748210, 43664280, 52397136, 65496420, 87328560, 130992840, 261985680]

約数ペア:

[(1, 261985680), (2, 130992840), (3, 87328560), (4, 65496420), (5, 52397136), (6, 43664280), (8, 32748210), (9, 29109520), (10, 26198568), (11, 23816880), (12, 21832140), (15, 17465712), (16, 16374105), (18, 14554760), (19, 13788720), (20, 13099284), (22, 11908440), (24, 10916070), (30, 8732856), (33, 7938960), (36, 7277380), (38, 6894360), (40, 6549642), (44, 5954220), (45, 5821904), (48, 5458035), (55, 4763376), (57, 4596240), (60, 4366428), (66, 3969480), (72, 3638690), (76, 3447180), (80, 3274821), (88, 2977110), (90, 2910952), (95, 2757744), (99, 2646320), (110, 2381688), (114, 2298120), (120, 2183214), (132, 1984740), (144, 1819345), (152, 1723590), (165, 1587792), (171, 1532080), (176, 1488555), (180, 1455476), (190, 1378872), (198, 1323160), (209, 1253520), (220, 1190844), (228, 1149060), (240, 1091607), (264, 992370), (285, 919248), (304, 861795), (330, 793896), (342, 766040), (360, 727738), (380, 689436), (396, 661580), (418, 626760), (440, 595422), (456, 574530), (495, 529264), (528, 496185), (570, 459624), (627, 417840), (660, 396948), (684, 383020), (720, 363869), (760, 344718), (792, 330790), (836, 313380), (855, 306416), (880, 297711), (912, 287265), (990, 264632), (1045, 250704), (1140, 229812), (1254, 208920), (1320, 198474), (1368, 191510), (1520, 172359), (1584, 165395), (1672, 156690), (1710, 153208), (1741, 150480), (1881, 139280), (1980, 132316), (2090, 125352), (2280, 114906), (2508, 104460), (2640, 99237), (2736, 95755), (3135, 83568), (3344, 78345), (3420, 76604), (3482, 75240), (3762, 69640), (3960, 66158), (4180, 62676), (4560, 57453), (5016, 52230), (5223, 50160), (6270, 41784), (6840, 38302), (6964, 37620), (7524, 34820), (7920, 33079), (8360, 31338), (8705, 30096), (9405, 27856), (10032, 26115), (10446, 25080), (12540, 20892), (13680, 19151), (13928, 18810), (15048, 17410), (15669, 16720)]