19780010

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{379}}^1$

素因数の和:710

約数の個数: 32

約数和(自身を含む): 37920960

約数和(自身を除く): 18140950

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 307, 379, 614, 758, 1535, 1895, 3070, 3790, 5219, 6443, 10438, 12886, 26095, 32215, 52190, 64430, 116353, 232706, 581765, 1163530, 1978001, 3956002, 9890005, 19780010]

約数ペア:

[(1, 19780010), (2, 9890005), (5, 3956002), (10, 1978001), (17, 1163530), (34, 581765), (85, 232706), (170, 116353), (307, 64430), (379, 52190), (614, 32215), (758, 26095), (1535, 12886), (1895, 10438), (3070, 6443), (3790, 5219)]