443980940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{8581}}^1$

素因数の和:8802

約数の個数: 48

約数和(自身を含む): 1009243200

約数和(自身を除く): 565262260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 199, 260, 398, 796, 995, 1990, 2587, 3980, 5174, 8581, 10348, 12935, 17162, 25870, 34324, 42905, 51740, 85810, 111553, 171620, 223106, 446212, 557765, 1115530, 1707619, 2231060, 3415238, 6830476, 8538095, 17076190, 22199047, 34152380, 44398094, 88796188, 110995235, 221990470, 443980940]

約数ペア:

[(1, 443980940), (2, 221990470), (4, 110995235), (5, 88796188), (10, 44398094), (13, 34152380), (20, 22199047), (26, 17076190), (52, 8538095), (65, 6830476), (130, 3415238), (199, 2231060), (260, 1707619), (398, 1115530), (796, 557765), (995, 446212), (1990, 223106), (2587, 171620), (3980, 111553), (5174, 85810), (8581, 51740), (10348, 42905), (12935, 34324), (17162, 25870)]