219494020

素因数分解:

$2^2\times 5^1\times {\mathrm{1409}}^1\times {\mathrm{7789}}^1$

素因数の和:9207

約数の個数: 24

約数和(自身を含む): 461323800

約数和(自身を除く): 241829780

約数列:

[1, 2, 4, 5, 10, 20, 1409, 2818, 5636, 7045, 7789, 14090, 15578, 28180, 31156, 38945, 77890, 155780, 10974701, 21949402, 43898804, 54873505, 109747010, 219494020]

約数ペア:

[(1, 219494020), (2, 109747010), (4, 54873505), (5, 43898804), (10, 21949402), (20, 10974701), (1409, 155780), (2818, 77890), (5636, 38945), (7045, 31156), (7789, 28180), (14090, 15578)]