19516180

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{4049}}^1$

素因数の和:4299

約数の個数: 24

約数和(自身を含む): 41164200

約数和(自身を除く): 21648020

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 4049, 4820, 8098, 16196, 20245, 40490, 80980, 975809, 1951618, 3903236, 4879045, 9758090, 19516180]

約数ペア:

[(1, 19516180), (2, 9758090), (4, 4879045), (5, 3903236), (10, 1951618), (20, 975809), (241, 80980), (482, 40490), (964, 20245), (1205, 16196), (2410, 8098), (4049, 4820)]