18050720

素因数分解:

$2^5\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1117}}^1$

素因数の和:1233

約数の個数: 48

約数和(自身を含む): 43105608

約数和(自身を除く): 25054888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 101, 160, 202, 404, 505, 808, 1010, 1117, 1616, 2020, 2234, 3232, 4040, 4468, 5585, 8080, 8936, 11170, 16160, 17872, 22340, 35744, 44680, 89360, 112817, 178720, 225634, 451268, 564085, 902536, 1128170, 1805072, 2256340, 3610144, 4512680, 9025360, 18050720]

約数ペア:

[(1, 18050720), (2, 9025360), (4, 4512680), (5, 3610144), (8, 2256340), (10, 1805072), (16, 1128170), (20, 902536), (32, 564085), (40, 451268), (80, 225634), (101, 178720), (160, 112817), (202, 89360), (404, 44680), (505, 35744), (808, 22340), (1010, 17872), (1117, 16160), (1616, 11170), (2020, 8936), (2234, 8080), (3232, 5585), (4040, 4468)]