201478780

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{43991}}^1$

素因数の和:44229

約数の個数: 24

約数和(自身を含む): 424962720

約数和(自身を除く): 223483940

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4580, 43991, 87982, 175964, 219955, 439910, 879820, 10073939, 20147878, 40295756, 50369695, 100739390, 201478780]

約数ペア:

[(1, 201478780), (2, 100739390), (4, 50369695), (5, 40295756), (10, 20147878), (20, 10073939), (229, 879820), (458, 439910), (916, 219955), (1145, 175964), (2290, 87982), (4580, 43991)]