30991090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12547}}^1$

素因数の和:12586

約数の個数: 32

約数和(自身を含む): 63241920

約数和(自身を除く): 32250830

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 12547, 25094, 62735, 125470, 163111, 238393, 326222, 476786, 815555, 1191965, 1631110, 2383930, 3099109, 6198218, 15495545, 30991090]

約数ペア:

[(1, 30991090), (2, 15495545), (5, 6198218), (10, 3099109), (13, 2383930), (19, 1631110), (26, 1191965), (38, 815555), (65, 476786), (95, 326222), (130, 238393), (190, 163111), (247, 125470), (494, 62735), (1235, 25094), (2470, 12547)]