16955560

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{6949}}^1$

素因数の和:7021

約数の個数: 32

約数和(自身を含む): 38781000

約数和(自身を除く): 21825440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 6949, 13898, 27796, 34745, 55592, 69490, 138980, 277960, 423889, 847778, 1695556, 2119445, 3391112, 4238890, 8477780, 16955560]

約数ペア:

[(1, 16955560), (2, 8477780), (4, 4238890), (5, 3391112), (8, 2119445), (10, 1695556), (20, 847778), (40, 423889), (61, 277960), (122, 138980), (244, 69490), (305, 55592), (488, 34745), (610, 27796), (1220, 13898), (2440, 6949)]