18521940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1567}}^1$

素因数の和:1776

約数の個数: 48

約数和(自身を含む): 52157952

約数和(自身を除く): 33636012

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 197, 394, 591, 788, 985, 1182, 1567, 1970, 2364, 2955, 3134, 3940, 4701, 5910, 6268, 7835, 9402, 11820, 15670, 18804, 23505, 31340, 47010, 94020, 308699, 617398, 926097, 1234796, 1543495, 1852194, 3086990, 3704388, 4630485, 6173980, 9260970, 18521940]

約数ペア:

[(1, 18521940), (2, 9260970), (3, 6173980), (4, 4630485), (5, 3704388), (6, 3086990), (10, 1852194), (12, 1543495), (15, 1234796), (20, 926097), (30, 617398), (60, 308699), (197, 94020), (394, 47010), (591, 31340), (788, 23505), (985, 18804), (1182, 15670), (1567, 11820), (1970, 9402), (2364, 7835), (2955, 6268), (3134, 5910), (3940, 4701)]