128571890

素因数分解:

$2^1\times 5^1\times {\mathrm{443}}^1\times {\mathrm{29023}}^1$

素因数の和:29473

約数の個数: 16

約数和(自身を含む): 231959808

約数和(自身を除く): 103387918

約数列:

[1, 2, 5, 10, 443, 886, 2215, 4430, 29023, 58046, 145115, 290230, 12857189, 25714378, 64285945, 128571890]

約数ペア:

[(1, 128571890), (2, 64285945), (5, 25714378), (10, 12857189), (443, 290230), (886, 145115), (2215, 58046), (4430, 29023)]