640435523

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{1021}}^1$

素因数の和:1215

約数の個数: 32

約数和(自身を含む): 809031552

約数和(自身を除く): 168596029

約数列:

[1, 7, 13, 61, 91, 113, 427, 791, 793, 1021, 1469, 5551, 6893, 7147, 10283, 13273, 48251, 62281, 89609, 92911, 115373, 435967, 627263, 807611, 809653, 1499849, 5667571, 7037753, 10498943, 49264271, 91490789, 640435523]

約数ペア:

[(1, 640435523), (7, 91490789), (13, 49264271), (61, 10498943), (91, 7037753), (113, 5667571), (427, 1499849), (791, 809653), (793, 807611), (1021, 627263), (1469, 435967), (5551, 115373), (6893, 92911), (7147, 89609), (10283, 62281), (13273, 48251)]