64801490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{503}}^1\times {\mathrm{991}}^1$

素因数の和:1514

約数の個数: 32

約数和(自身を含む): 125991936

約数和(自身を除く): 61190446

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 503, 991, 1006, 1982, 2515, 4955, 5030, 6539, 9910, 12883, 13078, 25766, 32695, 64415, 65390, 128830, 498473, 996946, 2492365, 4984730, 6480149, 12960298, 32400745, 64801490]

約数ペア:

[(1, 64801490), (2, 32400745), (5, 12960298), (10, 6480149), (13, 4984730), (26, 2492365), (65, 996946), (130, 498473), (503, 128830), (991, 65390), (1006, 64415), (1982, 32695), (2515, 25766), (4955, 13078), (5030, 12883), (6539, 9910)]