65040280

素因数分解:

$2^3\times 5^1\times {\mathrm{523}}^1\times {\mathrm{3109}}^1$

素因数の和:3643

約数の個数: 32

約数和(自身を含む): 146667600

約数和(自身を除く): 81627320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523, 1046, 2092, 2615, 3109, 4184, 5230, 6218, 10460, 12436, 15545, 20920, 24872, 31090, 62180, 124360, 1626007, 3252014, 6504028, 8130035, 13008056, 16260070, 32520140, 65040280]

約数ペア:

[(1, 65040280), (2, 32520140), (4, 16260070), (5, 13008056), (8, 8130035), (10, 6504028), (20, 3252014), (40, 1626007), (523, 124360), (1046, 62180), (2092, 31090), (2615, 24872), (3109, 20920), (4184, 15545), (5230, 12436), (6218, 10460)]