20615820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{14939}}^1$

素因数の和:14974

約数の個数: 48

約数和(自身を含む): 60238080

約数和(自身を除く): 39622260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 14939, 29878, 44817, 59756, 74695, 89634, 149390, 179268, 224085, 298780, 343597, 448170, 687194, 896340, 1030791, 1374388, 1717985, 2061582, 3435970, 4123164, 5153955, 6871940, 10307910, 20615820]

約数ペア:

[(1, 20615820), (2, 10307910), (3, 6871940), (4, 5153955), (5, 4123164), (6, 3435970), (10, 2061582), (12, 1717985), (15, 1374388), (20, 1030791), (23, 896340), (30, 687194), (46, 448170), (60, 343597), (69, 298780), (92, 224085), (115, 179268), (138, 149390), (230, 89634), (276, 74695), (345, 59756), (460, 44817), (690, 29878), (1380, 14939)]