16868920

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5081}}^1$

素因数の和:5175

約数の個数: 32

約数和(自身を含む): 38419920

約数和(自身を除く): 21551000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 5081, 10162, 20324, 25405, 40648, 50810, 101620, 203240, 421723, 843446, 1686892, 2108615, 3373784, 4217230, 8434460, 16868920]

約数ペア:

[(1, 16868920), (2, 8434460), (4, 4217230), (5, 3373784), (8, 2108615), (10, 1686892), (20, 843446), (40, 421723), (83, 203240), (166, 101620), (332, 50810), (415, 40648), (664, 25405), (830, 20324), (1660, 10162), (3320, 5081)]