1640669450

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{669661}}^1$

素因数の和:669687

約数の個数: 36

約数和(自身を含む): 3549878262

約数和(自身を除く): 1909208812

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 350, 490, 1225, 2450, 669661, 1339322, 3348305, 4687627, 6696610, 9375254, 16741525, 23438135, 32813389, 33483050, 46876270, 65626778, 117190675, 164066945, 234381350, 328133890, 820334725, 1640669450]

約数ペア:

[(1, 1640669450), (2, 820334725), (5, 328133890), (7, 234381350), (10, 164066945), (14, 117190675), (25, 65626778), (35, 46876270), (49, 33483050), (50, 32813389), (70, 23438135), (98, 16741525), (175, 9375254), (245, 6696610), (350, 4687627), (490, 3348305), (1225, 1339322), (2450, 669661)]