258347960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{21601}}^1$

素因数の和:21648

約数の個数: 64

約数和(自身を含む): 653244480

約数和(自身を除く): 394896520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 460, 520, 598, 920, 1196, 1495, 2392, 2990, 5980, 11960, 21601, 43202, 86404, 108005, 172808, 216010, 280813, 432020, 496823, 561626, 864040, 993646, 1123252, 1404065, 1987292, 2246504, 2484115, 2808130, 3974584, 4968230, 5616260, 6458699, 9936460, 11232520, 12917398, 19872920, 25834796, 32293495, 51669592, 64586990, 129173980, 258347960]

約数ペア:

[(1, 258347960), (2, 129173980), (4, 64586990), (5, 51669592), (8, 32293495), (10, 25834796), (13, 19872920), (20, 12917398), (23, 11232520), (26, 9936460), (40, 6458699), (46, 5616260), (52, 4968230), (65, 3974584), (92, 2808130), (104, 2484115), (115, 2246504), (130, 1987292), (184, 1404065), (230, 1123252), (260, 993646), (299, 864040), (460, 561626), (520, 496823), (598, 432020), (920, 280813), (1196, 216010), (1495, 172808), (2392, 108005), (2990, 86404), (5980, 43202), (11960, 21601)]