19725490

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{617}}^1$

素因数の和:786

約数の個数: 32

約数和(自身を含む): 37376640

約数和(自身を除く): 17651150

約数列:

[1, 2, 5, 10, 23, 46, 115, 139, 230, 278, 617, 695, 1234, 1390, 3085, 3197, 6170, 6394, 14191, 15985, 28382, 31970, 70955, 85763, 141910, 171526, 428815, 857630, 1972549, 3945098, 9862745, 19725490]

約数ペア:

[(1, 19725490), (2, 9862745), (5, 3945098), (10, 1972549), (23, 857630), (46, 428815), (115, 171526), (139, 141910), (230, 85763), (278, 70955), (617, 31970), (695, 28382), (1234, 15985), (1390, 14191), (3085, 6394), (3197, 6170)]