1640902879

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{1607}}^1$

素因数の和:1863

約数の個数: 32

約数和(自身を含む): 2083968000

約数和(自身を除く): 443065121

約数列:

[1, 7, 11, 77, 89, 149, 623, 979, 1043, 1607, 1639, 6853, 11249, 11473, 13261, 17677, 92827, 123739, 143023, 145871, 239443, 1001161, 1021097, 1573253, 1676101, 2633873, 11012771, 18437111, 21310427, 149172989, 234414697, 1640902879]

約数ペア:

[(1, 1640902879), (7, 234414697), (11, 149172989), (77, 21310427), (89, 18437111), (149, 11012771), (623, 2633873), (979, 1676101), (1043, 1573253), (1607, 1021097), (1639, 1001161), (6853, 239443), (11249, 145871), (11473, 143023), (13261, 123739), (17677, 92827)]