40001260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1123}}^1$

素因数の和:1282

約数の個数: 48

約数和(自身を含む): 91205856

約数和(自身を除く): 51204596

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 137, 260, 274, 548, 685, 1123, 1370, 1781, 2246, 2740, 3562, 4492, 5615, 7124, 8905, 11230, 14599, 17810, 22460, 29198, 35620, 58396, 72995, 145990, 153851, 291980, 307702, 615404, 769255, 1538510, 2000063, 3077020, 4000126, 8000252, 10000315, 20000630, 40001260]

約数ペア:

[(1, 40001260), (2, 20000630), (4, 10000315), (5, 8000252), (10, 4000126), (13, 3077020), (20, 2000063), (26, 1538510), (52, 769255), (65, 615404), (130, 307702), (137, 291980), (260, 153851), (274, 145990), (548, 72995), (685, 58396), (1123, 35620), (1370, 29198), (1781, 22460), (2246, 17810), (2740, 14599), (3562, 11230), (4492, 8905), (5615, 7124)]