20375580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4783}}^1$

素因数の和:4866

約数の個数: 48

約数和(自身を含む): 57867264

約数和(自身を除く): 37491684

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 4783, 9566, 14349, 19132, 23915, 28698, 47830, 57396, 71745, 95660, 143490, 286980, 339593, 679186, 1018779, 1358372, 1697965, 2037558, 3395930, 4075116, 5093895, 6791860, 10187790, 20375580]

約数ペア:

[(1, 20375580), (2, 10187790), (3, 6791860), (4, 5093895), (5, 4075116), (6, 3395930), (10, 2037558), (12, 1697965), (15, 1358372), (20, 1018779), (30, 679186), (60, 339593), (71, 286980), (142, 143490), (213, 95660), (284, 71745), (355, 57396), (426, 47830), (710, 28698), (852, 23915), (1065, 19132), (1420, 14349), (2130, 9566), (4260, 4783)]