81240800

素因数分解:

$2^5\times 5^2\times {\mathrm{173}}^1\times {\mathrm{587}}^1$

素因数の和:780

約数の個数: 72

約数和(自身を含む): 199815336

約数和(自身を除く): 118574536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 173, 200, 346, 400, 587, 692, 800, 865, 1174, 1384, 1730, 2348, 2768, 2935, 3460, 4325, 4696, 5536, 5870, 6920, 8650, 9392, 11740, 13840, 14675, 17300, 18784, 23480, 27680, 29350, 34600, 46960, 58700, 69200, 93920, 101551, 117400, 138400, 203102, 234800, 406204, 469600, 507755, 812408, 1015510, 1624816, 2031020, 2538775, 3249632, 4062040, 5077550, 8124080, 10155100, 16248160, 20310200, 40620400, 81240800]

約数ペア:

[(1, 81240800), (2, 40620400), (4, 20310200), (5, 16248160), (8, 10155100), (10, 8124080), (16, 5077550), (20, 4062040), (25, 3249632), (32, 2538775), (40, 2031020), (50, 1624816), (80, 1015510), (100, 812408), (160, 507755), (173, 469600), (200, 406204), (346, 234800), (400, 203102), (587, 138400), (692, 117400), (800, 101551), (865, 93920), (1174, 69200), (1384, 58700), (1730, 46960), (2348, 34600), (2768, 29350), (2935, 27680), (3460, 23480), (4325, 18784), (4696, 17300), (5536, 14675), (5870, 13840), (6920, 11740), (8650, 9392)]