28768640

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{569}}^1$

素因数の和:667

約数の個数: 64

約数和(自身を含む): 69768000

約数和(自身を除く): 40999360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 316, 320, 395, 569, 632, 640, 790, 1138, 1264, 1580, 2276, 2528, 2845, 3160, 4552, 5056, 5690, 6320, 9104, 10112, 11380, 12640, 18208, 22760, 25280, 36416, 44951, 45520, 50560, 72832, 89902, 91040, 179804, 182080, 224755, 359608, 364160, 449510, 719216, 899020, 1438432, 1798040, 2876864, 3596080, 5753728, 7192160, 14384320, 28768640]

約数ペア:

[(1, 28768640), (2, 14384320), (4, 7192160), (5, 5753728), (8, 3596080), (10, 2876864), (16, 1798040), (20, 1438432), (32, 899020), (40, 719216), (64, 449510), (79, 364160), (80, 359608), (128, 224755), (158, 182080), (160, 179804), (316, 91040), (320, 89902), (395, 72832), (569, 50560), (632, 45520), (640, 44951), (790, 36416), (1138, 25280), (1264, 22760), (1580, 18208), (2276, 12640), (2528, 11380), (2845, 10112), (3160, 9104), (4552, 6320), (5056, 5690)]