207788920

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{45971}}^1$

素因数の和:46095

約数の個数: 32

約数和(自身を含む): 471672720

約数和(自身を除く): 263883800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 45971, 91942, 183884, 229855, 367768, 459710, 919420, 1838840, 5194723, 10389446, 20778892, 25973615, 41557784, 51947230, 103894460, 207788920]

約数ペア:

[(1, 207788920), (2, 103894460), (4, 51947230), (5, 41557784), (8, 25973615), (10, 20778892), (20, 10389446), (40, 5194723), (113, 1838840), (226, 919420), (452, 459710), (565, 367768), (904, 229855), (1130, 183884), (2260, 91942), (4520, 45971)]