20369480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16427}}^1$

素因数の和:16469

約数の個数: 32

約数和(自身を含む): 47312640

約数和(自身を除く): 26943160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16427, 32854, 65708, 82135, 131416, 164270, 328540, 509237, 657080, 1018474, 2036948, 2546185, 4073896, 5092370, 10184740, 20369480]

約数ペア:

[(1, 20369480), (2, 10184740), (4, 5092370), (5, 4073896), (8, 2546185), (10, 2036948), (20, 1018474), (31, 657080), (40, 509237), (62, 328540), (124, 164270), (155, 131416), (248, 82135), (310, 65708), (620, 32854), (1240, 16427)]