2220199220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{12973}}^1$

素因数の和:13224

約数の個数: 48

約数和(自身を含む): 4795190400

約数和(自身を除く): 2574991180

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 199, 215, 398, 430, 796, 860, 995, 1990, 3980, 8557, 12973, 17114, 25946, 34228, 42785, 51892, 64865, 85570, 129730, 171140, 259460, 557839, 1115678, 2231356, 2581627, 2789195, 5163254, 5578390, 10326508, 11156780, 12908135, 25816270, 51632540, 111009961, 222019922, 444039844, 555049805, 1110099610, 2220199220]

約数ペア:

[(1, 2220199220), (2, 1110099610), (4, 555049805), (5, 444039844), (10, 222019922), (20, 111009961), (43, 51632540), (86, 25816270), (172, 12908135), (199, 11156780), (215, 10326508), (398, 5578390), (430, 5163254), (796, 2789195), (860, 2581627), (995, 2231356), (1990, 1115678), (3980, 557839), (8557, 259460), (12973, 171140), (17114, 129730), (25946, 85570), (34228, 64865), (42785, 51892)]