19195480

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7867}}^1$

素因数の和:7939

約数の個数: 32

約数和(自身を含む): 43903440

約数和(自身を除く): 24707960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 7867, 15734, 31468, 39335, 62936, 78670, 157340, 314680, 479887, 959774, 1919548, 2399435, 3839096, 4798870, 9597740, 19195480]

約数ペア:

[(1, 19195480), (2, 9597740), (4, 4798870), (5, 3839096), (8, 2399435), (10, 1919548), (20, 959774), (40, 479887), (61, 314680), (122, 157340), (244, 78670), (305, 62936), (488, 39335), (610, 31468), (1220, 15734), (2440, 7867)]