40031920

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1609}}^1$

素因数の和:1933

約数の個数: 40

約数和(自身を含む): 93431520

約数和(自身を除く): 53399600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 622, 1244, 1555, 1609, 2488, 3110, 3218, 4976, 6220, 6436, 8045, 12440, 12872, 16090, 24880, 25744, 32180, 64360, 128720, 500399, 1000798, 2001596, 2501995, 4003192, 5003990, 8006384, 10007980, 20015960, 40031920]

約数ペア:

[(1, 40031920), (2, 20015960), (4, 10007980), (5, 8006384), (8, 5003990), (10, 4003192), (16, 2501995), (20, 2001596), (40, 1000798), (80, 500399), (311, 128720), (622, 64360), (1244, 32180), (1555, 25744), (1609, 24880), (2488, 16090), (3110, 12872), (3218, 12440), (4976, 8045), (6220, 6436)]