85820920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{24107}}^1$

素因数の和:24207

約数の個数: 32

約数和(自身を含む): 195274800

約数和(自身を除く): 109453880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 24107, 48214, 96428, 120535, 192856, 241070, 482140, 964280, 2145523, 4291046, 8582092, 10727615, 17164184, 21455230, 42910460, 85820920]

約数ペア:

[(1, 85820920), (2, 42910460), (4, 21455230), (5, 17164184), (8, 10727615), (10, 8582092), (20, 4291046), (40, 2145523), (89, 964280), (178, 482140), (356, 241070), (445, 192856), (712, 120535), (890, 96428), (1780, 48214), (3560, 24107)]