289409740

素因数分解:

$2^2\times 5^1\times {\mathrm{1423}}^1\times {\mathrm{10169}}^1$

素因数の和:11601

約数の個数: 24

約数和(自身を含む): 608247360

約数和(自身を除く): 318837620

約数列:

[1, 2, 4, 5, 10, 20, 1423, 2846, 5692, 7115, 10169, 14230, 20338, 28460, 40676, 50845, 101690, 203380, 14470487, 28940974, 57881948, 72352435, 144704870, 289409740]

約数ペア:

[(1, 289409740), (2, 144704870), (4, 72352435), (5, 57881948), (10, 28940974), (20, 14470487), (1423, 203380), (2846, 101690), (5692, 50845), (7115, 40676), (10169, 28460), (14230, 20338)]