201728720

素因数分解:

$2^4\times 5^1\times {\mathrm{2521609}}^1$

素因数の和:2521622

約数の個数: 20

約数和(自身を含む): 469019460

約数和(自身を除く): 267290740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2521609, 5043218, 10086436, 12608045, 20172872, 25216090, 40345744, 50432180, 100864360, 201728720]

約数ペア:

[(1, 201728720), (2, 100864360), (4, 50432180), (5, 40345744), (8, 25216090), (10, 20172872), (16, 12608045), (20, 10086436), (40, 5043218), (80, 2521609)]