221858020

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{74449}}^1$

素因数の和:74607

約数の個数: 24

約数和(自身を含む): 469035000

約数和(自身を除く): 247176980

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 74449, 148898, 297796, 372245, 744490, 1488980, 11092901, 22185802, 44371604, 55464505, 110929010, 221858020]

約数ペア:

[(1, 221858020), (2, 110929010), (4, 55464505), (5, 44371604), (10, 22185802), (20, 11092901), (149, 1488980), (298, 744490), (596, 372245), (745, 297796), (1490, 148898), (2980, 74449)]