221358120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{25981}}^1$

素因数の和:26066

約数の個数: 64

約数和(自身を含む): 673453440

約数和(自身を除く): 452095320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2840, 4260, 8520, 25981, 51962, 77943, 103924, 129905, 155886, 207848, 259810, 311772, 389715, 519620, 623544, 779430, 1039240, 1558860, 1844651, 3117720, 3689302, 5533953, 7378604, 9223255, 11067906, 14757208, 18446510, 22135812, 27669765, 36893020, 44271624, 55339530, 73786040, 110679060, 221358120]

約数ペア:

[(1, 221358120), (2, 110679060), (3, 73786040), (4, 55339530), (5, 44271624), (6, 36893020), (8, 27669765), (10, 22135812), (12, 18446510), (15, 14757208), (20, 11067906), (24, 9223255), (30, 7378604), (40, 5533953), (60, 3689302), (71, 3117720), (120, 1844651), (142, 1558860), (213, 1039240), (284, 779430), (355, 623544), (426, 519620), (568, 389715), (710, 311772), (852, 259810), (1065, 207848), (1420, 155886), (1704, 129905), (2130, 103924), (2840, 77943), (4260, 51962), (8520, 25981)]