639681410

素因数分解:

$2^1\times 5^1\times {\mathrm{12049}}^1\times {\mathrm{5309}}^1$

素因数の和:17365

約数の個数: 16

約数和(自身を含む): 1151739000

約数和(自身を除く): 512057590

約数列:

[1, 2, 5, 10, 5309, 10618, 12049, 24098, 26545, 53090, 60245, 120490, 63968141, 127936282, 319840705, 639681410]

約数ペア:

[(1, 639681410), (2, 319840705), (5, 127936282), (10, 63968141), (5309, 120490), (10618, 60245), (12049, 53090), (24098, 26545)]