40528720

素因数分解:

$2^4\times 5^1\times {\mathrm{506609}}^1$

素因数の和:506622

約数の個数: 20

約数和(自身を含む): 94229460

約数和(自身を除く): 53700740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 506609, 1013218, 2026436, 2533045, 4052872, 5066090, 8105744, 10132180, 20264360, 40528720]

約数ペア:

[(1, 40528720), (2, 20264360), (4, 10132180), (5, 8105744), (8, 5066090), (10, 4052872), (16, 2533045), (20, 2026436), (40, 1013218), (80, 506609)]