19867700

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{3257}}^1$

素因数の和:3332

約数の個数: 36

約数和(自身を含む): 43833132

約数和(自身を除く): 23965432

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 610, 1220, 1525, 3050, 3257, 6100, 6514, 13028, 16285, 32570, 65140, 81425, 162850, 198677, 325700, 397354, 794708, 993385, 1986770, 3973540, 4966925, 9933850, 19867700]

約数ペア:

[(1, 19867700), (2, 9933850), (4, 4966925), (5, 3973540), (10, 1986770), (20, 993385), (25, 794708), (50, 397354), (61, 325700), (100, 198677), (122, 162850), (244, 81425), (305, 65140), (610, 32570), (1220, 16285), (1525, 13028), (3050, 6514), (3257, 6100)]