18726520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27539}}^1$

素因数の和:27567

約数の個数: 32

約数和(自身を含む): 44614800

約数和(自身を除く): 25888280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 27539, 55078, 110156, 137695, 220312, 275390, 468163, 550780, 936326, 1101560, 1872652, 2340815, 3745304, 4681630, 9363260, 18726520]

約数ペア:

[(1, 18726520), (2, 9363260), (4, 4681630), (5, 3745304), (8, 2340815), (10, 1872652), (17, 1101560), (20, 936326), (34, 550780), (40, 468163), (68, 275390), (85, 220312), (136, 137695), (170, 110156), (340, 55078), (680, 27539)]