261315865720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{696991}}^1$

素因数の和:697125

約数の個数: 128

約数和(自身を含む): 730670653440

約数和(自身を除く): 469354787720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 103, 104, 130, 140, 182, 206, 260, 280, 364, 412, 455, 515, 520, 721, 728, 824, 910, 1030, 1339, 1442, 1820, 2060, 2678, 2884, 3605, 3640, 4120, 5356, 5768, 6695, 7210, 9373, 10712, 13390, 14420, 18746, 26780, 28840, 37492, 46865, 53560, 74984, 93730, 187460, 374920, 696991, 1393982, 2787964, 3484955, 4878937, 5575928, 6969910, 9060883, 9757874, 13939820, 18121766, 19515748, 24394685, 27879640, 36243532, 39031496, 45304415, 48789370, 63426181, 71790073, 72487064, 90608830, 97578740, 126852362, 143580146, 181217660, 195157480, 253704724, 287160292, 317130905, 358950365, 362435320, 502530511, 507409448, 574320584, 634261810, 717900730, 933270949, 1005061022, 1268523620, 1435801460, 1866541898, 2010122044, 2512652555, 2537047240, 2871602920, 3733083796, 4020244088, 4666354745, 5025305110, 6532896643, 7466167592, 9332709490, 10050610220, 13065793286, 18665418980, 20101220440, 26131586572, 32664483215, 37330837960, 52263173144, 65328966430, 130657932860, 261315865720]

約数ペア:

[(1, 261315865720), (2, 130657932860), (4, 65328966430), (5, 52263173144), (7, 37330837960), (8, 32664483215), (10, 26131586572), (13, 20101220440), (14, 18665418980), (20, 13065793286), (26, 10050610220), (28, 9332709490), (35, 7466167592), (40, 6532896643), (52, 5025305110), (56, 4666354745), (65, 4020244088), (70, 3733083796), (91, 2871602920), (103, 2537047240), (104, 2512652555), (130, 2010122044), (140, 1866541898), (182, 1435801460), (206, 1268523620), (260, 1005061022), (280, 933270949), (364, 717900730), (412, 634261810), (455, 574320584), (515, 507409448), (520, 502530511), (721, 362435320), (728, 358950365), (824, 317130905), (910, 287160292), (1030, 253704724), (1339, 195157480), (1442, 181217660), (1820, 143580146), (2060, 126852362), (2678, 97578740), (2884, 90608830), (3605, 72487064), (3640, 71790073), (4120, 63426181), (5356, 48789370), (5768, 45304415), (6695, 39031496), (7210, 36243532), (9373, 27879640), (10712, 24394685), (13390, 19515748), (14420, 18121766), (18746, 13939820), (26780, 9757874), (28840, 9060883), (37492, 6969910), (46865, 5575928), (53560, 4878937), (74984, 3484955), (93730, 2787964), (187460, 1393982), (374920, 696991)]