201722320

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{12671}}^1$

素因数の和:12883

約数の個数: 40

約数和(自身を含む): 471398400

約数和(自身を除く): 269676080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 7960, 12671, 15920, 25342, 50684, 63355, 101368, 126710, 202736, 253420, 506840, 1013680, 2521529, 5043058, 10086116, 12607645, 20172232, 25215290, 40344464, 50430580, 100861160, 201722320]

約数ペア:

[(1, 201722320), (2, 100861160), (4, 50430580), (5, 40344464), (8, 25215290), (10, 20172232), (16, 12607645), (20, 10086116), (40, 5043058), (80, 2521529), (199, 1013680), (398, 506840), (796, 253420), (995, 202736), (1592, 126710), (1990, 101368), (3184, 63355), (3980, 50684), (7960, 25342), (12671, 15920)]