251452370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{857}}^1$

素因数の和:975

約数の個数: 64

約数和(自身を含む): 509404896

約数和(自身を除く): 257952526

約数列:

[1, 2, 5, 10, 13, 26, 37, 61, 65, 74, 122, 130, 185, 305, 370, 481, 610, 793, 857, 962, 1586, 1714, 2257, 2405, 3965, 4285, 4514, 4810, 7930, 8570, 11141, 11285, 22282, 22570, 29341, 31709, 52277, 55705, 58682, 63418, 104554, 111410, 146705, 158545, 261385, 293410, 317090, 412217, 522770, 679601, 824434, 1359202, 1934249, 2061085, 3398005, 3868498, 4122170, 6796010, 9671245, 19342490, 25145237, 50290474, 125726185, 251452370]

約数ペア:

[(1, 251452370), (2, 125726185), (5, 50290474), (10, 25145237), (13, 19342490), (26, 9671245), (37, 6796010), (61, 4122170), (65, 3868498), (74, 3398005), (122, 2061085), (130, 1934249), (185, 1359202), (305, 824434), (370, 679601), (481, 522770), (610, 412217), (793, 317090), (857, 293410), (962, 261385), (1586, 158545), (1714, 146705), (2257, 111410), (2405, 104554), (3965, 63418), (4285, 58682), (4514, 55705), (4810, 52277), (7930, 31709), (8570, 29341), (11141, 22570), (11285, 22282)]