90969125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:171

約数の個数: 64

約数和(自身を含む): 134447040

約数和(自身を除く): 43477915

約数列:

[1, 5, 13, 17, 25, 37, 65, 85, 89, 125, 185, 221, 325, 425, 445, 481, 629, 925, 1105, 1157, 1513, 1625, 2125, 2225, 2405, 3145, 3293, 4625, 5525, 5785, 7565, 8177, 11125, 12025, 15725, 16465, 19669, 27625, 28925, 37825, 40885, 42809, 55981, 60125, 78625, 82325, 98345, 144625, 189125, 204425, 214045, 279905, 411625, 491725, 727753, 1022125, 1070225, 1399525, 2458625, 3638765, 5351125, 6997625, 18193825, 90969125]

約数ペア:

[(1, 90969125), (5, 18193825), (13, 6997625), (17, 5351125), (25, 3638765), (37, 2458625), (65, 1399525), (85, 1070225), (89, 1022125), (125, 727753), (185, 491725), (221, 411625), (325, 279905), (425, 214045), (445, 204425), (481, 189125), (629, 144625), (925, 98345), (1105, 82325), (1157, 78625), (1513, 60125), (1625, 55981), (2125, 42809), (2225, 40885), (2405, 37825), (3145, 28925), (3293, 27625), (4625, 19669), (5525, 16465), (5785, 15725), (7565, 12025), (8177, 11125)]