3896018020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{51521}}^1$

素因数の和:51748

約数の個数: 48

約数和(自身を含む): 8655696000

約数和(自身を除く): 4759677980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 199, 380, 398, 796, 995, 1990, 3781, 3980, 7562, 15124, 18905, 37810, 51521, 75620, 103042, 206084, 257605, 515210, 978899, 1030420, 1957798, 3915596, 4894495, 9788990, 10252679, 19577980, 20505358, 41010716, 51263395, 102526790, 194800901, 205053580, 389601802, 779203604, 974004505, 1948009010, 3896018020]

約数ペア:

[(1, 3896018020), (2, 1948009010), (4, 974004505), (5, 779203604), (10, 389601802), (19, 205053580), (20, 194800901), (38, 102526790), (76, 51263395), (95, 41010716), (190, 20505358), (199, 19577980), (380, 10252679), (398, 9788990), (796, 4894495), (995, 3915596), (1990, 1957798), (3781, 1030420), (3980, 978899), (7562, 515210), (15124, 257605), (18905, 206084), (37810, 103042), (51521, 75620)]