19004570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^2$

素因数の和:191

約数の個数: 48

約数和(自身を含む): 38654280

約数和(自身を除く): 19649710

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 71, 130, 142, 145, 290, 355, 377, 710, 754, 923, 1846, 1885, 2059, 3770, 4118, 4615, 5041, 9230, 10082, 10295, 20590, 25205, 26767, 50410, 53534, 65533, 131066, 133835, 146189, 267670, 292378, 327665, 655330, 730945, 1461890, 1900457, 3800914, 9502285, 19004570]

約数ペア:

[(1, 19004570), (2, 9502285), (5, 3800914), (10, 1900457), (13, 1461890), (26, 730945), (29, 655330), (58, 327665), (65, 292378), (71, 267670), (130, 146189), (142, 133835), (145, 131066), (290, 65533), (355, 53534), (377, 50410), (710, 26767), (754, 25205), (923, 20590), (1846, 10295), (1885, 10082), (2059, 9230), (3770, 5041), (4118, 4615)]