20459960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26921}}^1$

素因数の和:26951

約数の個数: 32

約数和(自身を含む): 48459600

約数和(自身を除く): 27999640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 26921, 53842, 107684, 134605, 215368, 269210, 511499, 538420, 1022998, 1076840, 2045996, 2557495, 4091992, 5114990, 10229980, 20459960]

約数ペア:

[(1, 20459960), (2, 10229980), (4, 5114990), (5, 4091992), (8, 2557495), (10, 2045996), (19, 1076840), (20, 1022998), (38, 538420), (40, 511499), (76, 269210), (95, 215368), (152, 134605), (190, 107684), (380, 53842), (760, 26921)]