18502040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{347}}^1$

素因数の和:432

約数の個数: 64

約数和(自身を含む): 44098560

約数和(自身を除く): 25596520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 86, 124, 155, 172, 215, 248, 310, 344, 347, 430, 620, 694, 860, 1240, 1333, 1388, 1720, 1735, 2666, 2776, 3470, 5332, 6665, 6940, 10664, 10757, 13330, 13880, 14921, 21514, 26660, 29842, 43028, 53320, 53785, 59684, 74605, 86056, 107570, 119368, 149210, 215140, 298420, 430280, 462551, 596840, 925102, 1850204, 2312755, 3700408, 4625510, 9251020, 18502040]

約数ペア:

[(1, 18502040), (2, 9251020), (4, 4625510), (5, 3700408), (8, 2312755), (10, 1850204), (20, 925102), (31, 596840), (40, 462551), (43, 430280), (62, 298420), (86, 215140), (124, 149210), (155, 119368), (172, 107570), (215, 86056), (248, 74605), (310, 59684), (344, 53785), (347, 53320), (430, 43028), (620, 29842), (694, 26660), (860, 21514), (1240, 14921), (1333, 13880), (1388, 13330), (1720, 10757), (1735, 10664), (2666, 6940), (2776, 6665), (3470, 5332)]