15721452525

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{2063}}^1$

素因数の和:2275

約数の個数: 96

約数和(自身を含む): 28378183680

約数和(自身を除く): 12656731155

約数列:

[1, 3, 5, 15, 17, 25, 43, 51, 75, 85, 129, 139, 215, 255, 417, 425, 645, 695, 731, 1075, 1275, 2063, 2085, 2193, 2363, 3225, 3475, 3655, 5977, 6189, 7089, 10315, 10425, 10965, 11815, 17931, 18275, 29885, 30945, 35071, 35445, 51575, 54825, 59075, 88709, 89655, 101609, 105213, 149425, 154725, 175355, 177225, 266127, 286757, 304827, 443545, 448275, 508045, 526065, 860271, 876775, 1330635, 1433785, 1508053, 1524135, 2217725, 2540225, 2630325, 4301355, 4524159, 4874869, 6653175, 7168925, 7540265, 7620675, 12330551, 14624607, 21506775, 22620795, 24374345, 36991653, 37701325, 61652755, 73123035, 113103975, 121871725, 184958265, 209619367, 308263775, 365615175, 628858101, 924791325, 1048096835, 3144290505, 5240484175, 15721452525]

約数ペア:

[(1, 15721452525), (3, 5240484175), (5, 3144290505), (15, 1048096835), (17, 924791325), (25, 628858101), (43, 365615175), (51, 308263775), (75, 209619367), (85, 184958265), (129, 121871725), (139, 113103975), (215, 73123035), (255, 61652755), (417, 37701325), (425, 36991653), (645, 24374345), (695, 22620795), (731, 21506775), (1075, 14624607), (1275, 12330551), (2063, 7620675), (2085, 7540265), (2193, 7168925), (2363, 6653175), (3225, 4874869), (3475, 4524159), (3655, 4301355), (5977, 2630325), (6189, 2540225), (7089, 2217725), (10315, 1524135), (10425, 1508053), (10965, 1433785), (11815, 1330635), (17931, 876775), (18275, 860271), (29885, 526065), (30945, 508045), (35071, 448275), (35445, 443545), (51575, 304827), (54825, 286757), (59075, 266127), (88709, 177225), (89655, 175355), (101609, 154725), (105213, 149425)]