139790080

素因数分解:

$2^8\times 5^1\times {\mathrm{109211}}^1$

素因数の和:109232

約数の個数: 36

約数和(自身を含む): 334843992

約数和(自身を除く): 195053912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 109211, 218422, 436844, 546055, 873688, 1092110, 1747376, 2184220, 3494752, 4368440, 6989504, 8736880, 13979008, 17473760, 27958016, 34947520, 69895040, 139790080]

約数ペア:

[(1, 139790080), (2, 69895040), (4, 34947520), (5, 27958016), (8, 17473760), (10, 13979008), (16, 8736880), (20, 6989504), (32, 4368440), (40, 3494752), (64, 2184220), (80, 1747376), (128, 1092110), (160, 873688), (256, 546055), (320, 436844), (640, 218422), (1280, 109211)]