2570220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 7927920

約数和(自身を除く): 5357700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 131, 180, 218, 262, 327, 393, 436, 524, 545, 654, 655, 786, 981, 1090, 1179, 1308, 1310, 1572, 1635, 1962, 1965, 2180, 2358, 2620, 3270, 3924, 3930, 4716, 4905, 5895, 6540, 7860, 9810, 11790, 14279, 19620, 23580, 28558, 42837, 57116, 71395, 85674, 128511, 142790, 171348, 214185, 257022, 285580, 428370, 514044, 642555, 856740, 1285110, 2570220]

約数ペア:

[(1, 2570220), (2, 1285110), (3, 856740), (4, 642555), (5, 514044), (6, 428370), (9, 285580), (10, 257022), (12, 214185), (15, 171348), (18, 142790), (20, 128511), (30, 85674), (36, 71395), (45, 57116), (60, 42837), (90, 28558), (109, 23580), (131, 19620), (180, 14279), (218, 11790), (262, 9810), (327, 7860), (393, 6540), (436, 5895), (524, 4905), (545, 4716), (654, 3930), (655, 3924), (786, 3270), (981, 2620), (1090, 2358), (1179, 2180), (1308, 1965), (1310, 1962), (1572, 1635)]