72818080

素因数分解:

$2^5\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2287}}^1$

素因数の和:2501

約数の個数: 48

約数和(自身を含む): 172972800

約数和(自身を除く): 100154720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 199, 398, 796, 995, 1592, 1990, 2287, 3184, 3980, 4574, 6368, 7960, 9148, 11435, 15920, 18296, 22870, 31840, 36592, 45740, 73184, 91480, 182960, 365920, 455113, 910226, 1820452, 2275565, 3640904, 4551130, 7281808, 9102260, 14563616, 18204520, 36409040, 72818080]

約数ペア:

[(1, 72818080), (2, 36409040), (4, 18204520), (5, 14563616), (8, 9102260), (10, 7281808), (16, 4551130), (20, 3640904), (32, 2275565), (40, 1820452), (80, 910226), (160, 455113), (199, 365920), (398, 182960), (796, 91480), (995, 73184), (1592, 45740), (1990, 36592), (2287, 31840), (3184, 22870), (3980, 18296), (4574, 15920), (6368, 11435), (7960, 9148)]