15921040

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2803}}^1$

素因数の和:2887

約数の個数: 40

約数和(自身を含む): 37551168

約数和(自身を除く): 21630128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2803, 2840, 5606, 5680, 11212, 14015, 22424, 28030, 44848, 56060, 112120, 199013, 224240, 398026, 796052, 995065, 1592104, 1990130, 3184208, 3980260, 7960520, 15921040]

約数ペア:

[(1, 15921040), (2, 7960520), (4, 3980260), (5, 3184208), (8, 1990130), (10, 1592104), (16, 995065), (20, 796052), (40, 398026), (71, 224240), (80, 199013), (142, 112120), (284, 56060), (355, 44848), (568, 28030), (710, 22424), (1136, 14015), (1420, 11212), (2803, 5680), (2840, 5606)]