8638760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{449}}^1$

素因数の和:510

約数の個数: 64

約数和(自身を含む): 21546000

約数和(自身を除く): 12907240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 449, 481, 520, 740, 898, 962, 1480, 1796, 1924, 2245, 2405, 3592, 3848, 4490, 4810, 5837, 8980, 9620, 11674, 16613, 17960, 19240, 23348, 29185, 33226, 46696, 58370, 66452, 83065, 116740, 132904, 166130, 215969, 233480, 332260, 431938, 664520, 863876, 1079845, 1727752, 2159690, 4319380, 8638760]

約数ペア:

[(1, 8638760), (2, 4319380), (4, 2159690), (5, 1727752), (8, 1079845), (10, 863876), (13, 664520), (20, 431938), (26, 332260), (37, 233480), (40, 215969), (52, 166130), (65, 132904), (74, 116740), (104, 83065), (130, 66452), (148, 58370), (185, 46696), (260, 33226), (296, 29185), (370, 23348), (449, 19240), (481, 17960), (520, 16613), (740, 11674), (898, 9620), (962, 8980), (1480, 5837), (1796, 4810), (1924, 4490), (2245, 3848), (2405, 3592)]