19904830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{3067}}^1$

素因数の和:3144

約数の個数: 32

約数和(自身を含む): 39761280

約数和(自身を除く): 19856450

約数列:

[1, 2, 5, 10, 11, 22, 55, 59, 110, 118, 295, 590, 649, 1298, 3067, 3245, 6134, 6490, 15335, 30670, 33737, 67474, 168685, 180953, 337370, 361906, 904765, 1809530, 1990483, 3980966, 9952415, 19904830]

約数ペア:

[(1, 19904830), (2, 9952415), (5, 3980966), (10, 1990483), (11, 1809530), (22, 904765), (55, 361906), (59, 337370), (110, 180953), (118, 168685), (295, 67474), (590, 33737), (649, 30670), (1298, 15335), (3067, 6490), (3245, 6134)]