80149240

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{10069}}^1$

素因数の和:10279

約数の個数: 32

約数和(自身を含む): 181260000

約数和(自身を除く): 101110760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 10069, 20138, 40276, 50345, 80552, 100690, 201380, 402760, 2003731, 4007462, 8014924, 10018655, 16029848, 20037310, 40074620, 80149240]

約数ペア:

[(1, 80149240), (2, 40074620), (4, 20037310), (5, 16029848), (8, 10018655), (10, 8014924), (20, 4007462), (40, 2003731), (199, 402760), (398, 201380), (796, 100690), (995, 80552), (1592, 50345), (1990, 40276), (3980, 20138), (7960, 10069)]