289048640

素因数分解:

$2^6\times 5^1\times {\mathrm{443}}^1\times {\mathrm{2039}}^1$

素因数の和:2499

約数の個数: 56

約数和(自身を含む): 690189120

約数和(自身を除く): 401140480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 443, 886, 1772, 2039, 2215, 3544, 4078, 4430, 7088, 8156, 8860, 10195, 14176, 16312, 17720, 20390, 28352, 32624, 35440, 40780, 65248, 70880, 81560, 130496, 141760, 163120, 326240, 652480, 903277, 1806554, 3613108, 4516385, 7226216, 9032770, 14452432, 18065540, 28904864, 36131080, 57809728, 72262160, 144524320, 289048640]

約数ペア:

[(1, 289048640), (2, 144524320), (4, 72262160), (5, 57809728), (8, 36131080), (10, 28904864), (16, 18065540), (20, 14452432), (32, 9032770), (40, 7226216), (64, 4516385), (80, 3613108), (160, 1806554), (320, 903277), (443, 652480), (886, 326240), (1772, 163120), (2039, 141760), (2215, 130496), (3544, 81560), (4078, 70880), (4430, 65248), (7088, 40780), (8156, 35440), (8860, 32624), (10195, 28352), (14176, 20390), (16312, 17720)]