80587040

素因数分解:

$2^5\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2531}}^1$

素因数の和:2745

約数の個数: 48

約数和(自身を含む): 191419200

約数和(自身を除く): 110832160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 199, 398, 796, 995, 1592, 1990, 2531, 3184, 3980, 5062, 6368, 7960, 10124, 12655, 15920, 20248, 25310, 31840, 40496, 50620, 80992, 101240, 202480, 404960, 503669, 1007338, 2014676, 2518345, 4029352, 5036690, 8058704, 10073380, 16117408, 20146760, 40293520, 80587040]

約数ペア:

[(1, 80587040), (2, 40293520), (4, 20146760), (5, 16117408), (8, 10073380), (10, 8058704), (16, 5036690), (20, 4029352), (32, 2518345), (40, 2014676), (80, 1007338), (160, 503669), (199, 404960), (398, 202480), (796, 101240), (995, 80992), (1592, 50620), (1990, 40496), (2531, 31840), (3184, 25310), (3980, 20248), (5062, 15920), (6368, 12655), (7960, 10124)]