320280325

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 427472640

約数和(自身を除く): 107192315

約数列:

[1, 5, 25, 37, 47, 53, 139, 185, 235, 265, 695, 925, 1175, 1325, 1739, 1961, 2491, 3475, 5143, 6533, 7367, 8695, 9805, 12455, 25715, 32665, 36835, 43475, 49025, 62275, 92167, 128575, 163325, 184175, 241721, 272579, 346249, 460835, 1208605, 1362895, 1731245, 2304175, 6043025, 6814475, 8656225, 12811213, 64056065, 320280325]

約数ペア:

[(1, 320280325), (5, 64056065), (25, 12811213), (37, 8656225), (47, 6814475), (53, 6043025), (139, 2304175), (185, 1731245), (235, 1362895), (265, 1208605), (695, 460835), (925, 346249), (1175, 272579), (1325, 241721), (1739, 184175), (1961, 163325), (2491, 128575), (3475, 92167), (5143, 62275), (6533, 49025), (7367, 43475), (8695, 36835), (9805, 32665), (12455, 25715)]