213662320

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{13421}}^1$

素因数の和:13633

約数の個数: 40

約数和(自身を含む): 499298400

約数和(自身を除く): 285636080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 7960, 13421, 15920, 26842, 53684, 67105, 107368, 134210, 214736, 268420, 536840, 1073680, 2670779, 5341558, 10683116, 13353895, 21366232, 26707790, 42732464, 53415580, 106831160, 213662320]

約数ペア:

[(1, 213662320), (2, 106831160), (4, 53415580), (5, 42732464), (8, 26707790), (10, 21366232), (16, 13353895), (20, 10683116), (40, 5341558), (80, 2670779), (199, 1073680), (398, 536840), (796, 268420), (995, 214736), (1592, 134210), (1990, 107368), (3184, 67105), (3980, 53684), (7960, 26842), (13421, 15920)]