2001978280

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{685609}}^1$

素因数の和:685693

約数の個数: 32

約数和(自身を含む): 4566162600

約数和(自身を除く): 2564184320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 685609, 1371218, 2742436, 3428045, 5484872, 6856090, 13712180, 27424360, 50049457, 100098914, 200197828, 250247285, 400395656, 500494570, 1000989140, 2001978280]

約数ペア:

[(1, 2001978280), (2, 1000989140), (4, 500494570), (5, 400395656), (8, 250247285), (10, 200197828), (20, 100098914), (40, 50049457), (73, 27424360), (146, 13712180), (292, 6856090), (365, 5484872), (584, 3428045), (730, 2742436), (1460, 1371218), (2920, 685609)]