9980455220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{8180701}}^1$

素因数の和:8180771

約数の個数: 24

約数和(自身を含む): 21302548008

約数和(自身を除く): 11322092788

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 8180701, 16361402, 32722804, 40903505, 81807010, 163614020, 499022761, 998045522, 1996091044, 2495113805, 4990227610, 9980455220]

約数ペア:

[(1, 9980455220), (2, 4990227610), (4, 2495113805), (5, 1996091044), (10, 998045522), (20, 499022761), (61, 163614020), (122, 81807010), (244, 40903505), (305, 32722804), (610, 16361402), (1220, 8180701)]