20971534740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26886583}}^1$

素因数の和:26886608

約数の個数: 48

約数和(自身を含む): 63237245568

約数和(自身を除く): 42265710828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 26886583, 53773166, 80659749, 107546332, 134432915, 161319498, 268865830, 322638996, 349525579, 403298745, 537731660, 699051158, 806597490, 1048576737, 1398102316, 1613194980, 1747627895, 2097153474, 3495255790, 4194306948, 5242883685, 6990511580, 10485767370, 20971534740]

約数ペア:

[(1, 20971534740), (2, 10485767370), (3, 6990511580), (4, 5242883685), (5, 4194306948), (6, 3495255790), (10, 2097153474), (12, 1747627895), (13, 1613194980), (15, 1398102316), (20, 1048576737), (26, 806597490), (30, 699051158), (39, 537731660), (52, 403298745), (60, 349525579), (65, 322638996), (78, 268865830), (130, 161319498), (156, 134432915), (195, 107546332), (260, 80659749), (390, 53773166), (780, 26886583)]