28025780

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{16883}}^1$

素因数の和:16975

約数の個数: 24

約数和(自身を含む): 59566752

約数和(自身を除く): 31540972

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 16883, 33766, 67532, 84415, 168830, 337660, 1401289, 2802578, 5605156, 7006445, 14012890, 28025780]

約数ペア:

[(1, 28025780), (2, 14012890), (4, 7006445), (5, 5605156), (10, 2802578), (20, 1401289), (83, 337660), (166, 168830), (332, 84415), (415, 67532), (830, 33766), (1660, 16883)]