25740715

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:212

約数の個数: 64

約数和(自身を含む): 42900480

約数和(自身を除く): 17159765

約数列:

[1, 5, 7, 11, 13, 35, 37, 55, 65, 77, 91, 139, 143, 185, 259, 385, 407, 455, 481, 695, 715, 973, 1001, 1295, 1529, 1807, 2035, 2405, 2849, 3367, 4865, 5005, 5143, 5291, 7645, 9035, 10703, 12649, 14245, 16835, 19877, 25715, 26455, 36001, 37037, 53515, 56573, 63245, 66859, 99385, 139139, 180005, 185185, 282865, 334295, 396011, 468013, 695695, 735449, 1980055, 2340065, 3677245, 5148143, 25740715]

約数ペア:

[(1, 25740715), (5, 5148143), (7, 3677245), (11, 2340065), (13, 1980055), (35, 735449), (37, 695695), (55, 468013), (65, 396011), (77, 334295), (91, 282865), (139, 185185), (143, 180005), (185, 139139), (259, 99385), (385, 66859), (407, 63245), (455, 56573), (481, 53515), (695, 37037), (715, 36001), (973, 26455), (1001, 25715), (1295, 19877), (1529, 16835), (1807, 14245), (2035, 12649), (2405, 10703), (2849, 9035), (3367, 7645), (4865, 5291), (5005, 5143)]