16405780

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{9883}}^1$

素因数の和:9975

約数の個数: 24

約数和(自身を含む): 34870752

約数和(自身を除く): 18464972

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 9883, 19766, 39532, 49415, 98830, 197660, 820289, 1640578, 3281156, 4101445, 8202890, 16405780]

約数ペア:

[(1, 16405780), (2, 8202890), (4, 4101445), (5, 3281156), (10, 1640578), (20, 820289), (83, 197660), (166, 98830), (332, 49415), (415, 39532), (830, 19766), (1660, 9883)]