3890500

素因数分解:

$2^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:301

約数の個数: 48

約数和(自身を含む): 8805888

約数和(自身を除く): 4915388

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 251, 310, 500, 502, 620, 775, 1004, 1255, 1550, 2510, 3100, 3875, 5020, 6275, 7750, 7781, 12550, 15500, 15562, 25100, 31124, 31375, 38905, 62750, 77810, 125500, 155620, 194525, 389050, 778100, 972625, 1945250, 3890500]

約数ペア:

[(1, 3890500), (2, 1945250), (4, 972625), (5, 778100), (10, 389050), (20, 194525), (25, 155620), (31, 125500), (50, 77810), (62, 62750), (100, 38905), (124, 31375), (125, 31124), (155, 25100), (250, 15562), (251, 15500), (310, 12550), (500, 7781), (502, 7750), (620, 6275), (775, 5020), (1004, 3875), (1255, 3100), (1550, 2510)]