40080760

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7649}}^1$

素因数の和:7791

約数の個数: 32

約数和(自身を含む): 90882000

約数和(自身を除く): 50801240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 7649, 15298, 30596, 38245, 61192, 76490, 152980, 305960, 1002019, 2004038, 4008076, 5010095, 8016152, 10020190, 20040380, 40080760]

約数ペア:

[(1, 40080760), (2, 20040380), (4, 10020190), (5, 8016152), (8, 5010095), (10, 4008076), (20, 2004038), (40, 1002019), (131, 305960), (262, 152980), (524, 76490), (655, 61192), (1048, 38245), (1310, 30596), (2620, 15298), (5240, 7649)]