80879968

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{977}}^1$

素因数の和:1199

約数の個数: 48

約数和(自身を含む): 172519200

約数和(自身を除く): 91639232

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 199, 208, 398, 416, 796, 977, 1592, 1954, 2587, 3184, 3908, 5174, 6368, 7816, 10348, 12701, 15632, 20696, 25402, 31264, 41392, 50804, 82784, 101608, 194423, 203216, 388846, 406432, 777692, 1555384, 2527499, 3110768, 5054998, 6221536, 10109996, 20219992, 40439984, 80879968]

約数ペア:

[(1, 80879968), (2, 40439984), (4, 20219992), (8, 10109996), (13, 6221536), (16, 5054998), (26, 3110768), (32, 2527499), (52, 1555384), (104, 777692), (199, 406432), (208, 388846), (398, 203216), (416, 194423), (796, 101608), (977, 82784), (1592, 50804), (1954, 41392), (2587, 31264), (3184, 25402), (3908, 20696), (5174, 15632), (6368, 12701), (7816, 10348)]