18426640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{797}}^1$

素因数の和:844

約数の個数: 60

約数和(自身を含む): 45567396

約数和(自身を除く): 27140756

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 289, 340, 578, 680, 797, 1156, 1360, 1445, 1594, 2312, 2890, 3188, 3985, 4624, 5780, 6376, 7970, 11560, 12752, 13549, 15940, 23120, 27098, 31880, 54196, 63760, 67745, 108392, 135490, 216784, 230333, 270980, 460666, 541960, 921332, 1083920, 1151665, 1842664, 2303330, 3685328, 4606660, 9213320, 18426640]

約数ペア:

[(1, 18426640), (2, 9213320), (4, 4606660), (5, 3685328), (8, 2303330), (10, 1842664), (16, 1151665), (17, 1083920), (20, 921332), (34, 541960), (40, 460666), (68, 270980), (80, 230333), (85, 216784), (136, 135490), (170, 108392), (272, 67745), (289, 63760), (340, 54196), (578, 31880), (680, 27098), (797, 23120), (1156, 15940), (1360, 13549), (1445, 12752), (1594, 11560), (2312, 7970), (2890, 6376), (3188, 5780), (3985, 4624)]