28530640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5023}}^1$

素因数の和:5107

約数の個数: 40

約数和(自身を含む): 67281408

約数和(自身を除く): 38750768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5023, 5680, 10046, 20092, 25115, 40184, 50230, 80368, 100460, 200920, 356633, 401840, 713266, 1426532, 1783165, 2853064, 3566330, 5706128, 7132660, 14265320, 28530640]

約数ペア:

[(1, 28530640), (2, 14265320), (4, 7132660), (5, 5706128), (8, 3566330), (10, 2853064), (16, 1783165), (20, 1426532), (40, 713266), (71, 401840), (80, 356633), (142, 200920), (284, 100460), (355, 80368), (568, 50230), (710, 40184), (1136, 25115), (1420, 20092), (2840, 10046), (5023, 5680)]