201665620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{40823}}^1$

素因数の和:40864

約数の個数: 48

約数和(自身を含む): 480090240

約数和(自身を除く): 278424620

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 40823, 81646, 163292, 204115, 408230, 530699, 775637, 816460, 1061398, 1551274, 2122796, 2653495, 3102548, 3878185, 5306990, 7756370, 10083281, 10613980, 15512740, 20166562, 40333124, 50416405, 100832810, 201665620]

約数ペア:

[(1, 201665620), (2, 100832810), (4, 50416405), (5, 40333124), (10, 20166562), (13, 15512740), (19, 10613980), (20, 10083281), (26, 7756370), (38, 5306990), (52, 3878185), (65, 3102548), (76, 2653495), (95, 2122796), (130, 1551274), (190, 1061398), (247, 816460), (260, 775637), (380, 530699), (494, 408230), (988, 204115), (1235, 163292), (2470, 81646), (4940, 40823)]