9957320

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2797}}^1$

素因数の和:2897

約数の個数: 32

約数和(自身を含む): 22663800

約数和(自身を除く): 12706480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 2797, 3560, 5594, 11188, 13985, 22376, 27970, 55940, 111880, 248933, 497866, 995732, 1244665, 1991464, 2489330, 4978660, 9957320]

約数ペア:

[(1, 9957320), (2, 4978660), (4, 2489330), (5, 1991464), (8, 1244665), (10, 995732), (20, 497866), (40, 248933), (89, 111880), (178, 55940), (356, 27970), (445, 22376), (712, 13985), (890, 11188), (1780, 5594), (2797, 3560)]