18464180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{227}}^1$

素因数の和:333

約数の個数: 72

約数和(自身を含む): 45849888

約数和(自身を除く): 27385708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 83, 98, 140, 166, 196, 227, 245, 332, 415, 454, 490, 581, 830, 908, 980, 1135, 1162, 1589, 1660, 2270, 2324, 2905, 3178, 4067, 4540, 5810, 6356, 7945, 8134, 11123, 11620, 15890, 16268, 18841, 20335, 22246, 31780, 37682, 40670, 44492, 55615, 75364, 81340, 94205, 111230, 131887, 188410, 222460, 263774, 376820, 527548, 659435, 923209, 1318870, 1846418, 2637740, 3692836, 4616045, 9232090, 18464180]

約数ペア:

[(1, 18464180), (2, 9232090), (4, 4616045), (5, 3692836), (7, 2637740), (10, 1846418), (14, 1318870), (20, 923209), (28, 659435), (35, 527548), (49, 376820), (70, 263774), (83, 222460), (98, 188410), (140, 131887), (166, 111230), (196, 94205), (227, 81340), (245, 75364), (332, 55615), (415, 44492), (454, 40670), (490, 37682), (581, 31780), (830, 22246), (908, 20335), (980, 18841), (1135, 16268), (1162, 15890), (1589, 11620), (1660, 11123), (2270, 8134), (2324, 7945), (2905, 6356), (3178, 5810), (4067, 4540)]