19665260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{57839}}^1$

素因数の和:57865

約数の個数: 24

約数和(自身を含む): 43727040

約数和(自身を除く): 24061780

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 57839, 115678, 231356, 289195, 578390, 983263, 1156780, 1966526, 3933052, 4916315, 9832630, 19665260]

約数ペア:

[(1, 19665260), (2, 9832630), (4, 4916315), (5, 3933052), (10, 1966526), (17, 1156780), (20, 983263), (34, 578390), (68, 289195), (85, 231356), (170, 115678), (340, 57839)]