18707790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8783}}^1$

素因数の和:8864

約数の個数: 32

約数和(自身を含む): 45536256

約数和(自身を除く): 26828466

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 142, 213, 355, 426, 710, 1065, 2130, 8783, 17566, 26349, 43915, 52698, 87830, 131745, 263490, 623593, 1247186, 1870779, 3117965, 3741558, 6235930, 9353895, 18707790]

約数ペア:

[(1, 18707790), (2, 9353895), (3, 6235930), (5, 3741558), (6, 3117965), (10, 1870779), (15, 1247186), (30, 623593), (71, 263490), (142, 131745), (213, 87830), (355, 52698), (426, 43915), (710, 26349), (1065, 17566), (2130, 8783)]