56151940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{449}}^1$

素因数の和:521

約数の個数: 72

約数和(自身を含む): 131430600

約数和(自身を除く): 75278660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 169, 185, 260, 338, 370, 449, 481, 676, 740, 845, 898, 962, 1690, 1796, 1924, 2245, 2405, 3380, 4490, 4810, 5837, 6253, 8980, 9620, 11674, 12506, 16613, 23348, 25012, 29185, 31265, 33226, 58370, 62530, 66452, 75881, 83065, 116740, 125060, 151762, 166130, 215969, 303524, 332260, 379405, 431938, 758810, 863876, 1079845, 1517620, 2159690, 2807597, 4319380, 5615194, 11230388, 14037985, 28075970, 56151940]

約数ペア:

[(1, 56151940), (2, 28075970), (4, 14037985), (5, 11230388), (10, 5615194), (13, 4319380), (20, 2807597), (26, 2159690), (37, 1517620), (52, 1079845), (65, 863876), (74, 758810), (130, 431938), (148, 379405), (169, 332260), (185, 303524), (260, 215969), (338, 166130), (370, 151762), (449, 125060), (481, 116740), (676, 83065), (740, 75881), (845, 66452), (898, 62530), (962, 58370), (1690, 33226), (1796, 31265), (1924, 29185), (2245, 25012), (2405, 23348), (3380, 16613), (4490, 12506), (4810, 11674), (5837, 9620), (6253, 8980)]