20157873985

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{929}}^1\times {\mathrm{2213}}^1$

素因数の和:3237

約数の個数: 32

約数和(自身を含む): 25350654240

約数和(自身を除く): 5192780255

約数列:

[1, 5, 37, 53, 185, 265, 929, 1961, 2213, 4645, 9805, 11065, 34373, 49237, 81881, 117289, 171865, 246185, 409405, 586445, 1821769, 2055877, 4339693, 9108845, 10279385, 21698465, 76067449, 108961481, 380337245, 544807405, 4031574797, 20157873985]

約数ペア:

[(1, 20157873985), (5, 4031574797), (37, 544807405), (53, 380337245), (185, 108961481), (265, 76067449), (929, 21698465), (1961, 10279385), (2213, 9108845), (4645, 4339693), (9805, 2055877), (11065, 1821769), (34373, 586445), (49237, 409405), (81881, 246185), (117289, 171865)]