20471130

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:345

約数の個数: 80

約数和(自身を含む): 55756800

約数和(自身を除く): 35285670

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 127, 135, 162, 199, 254, 270, 381, 398, 405, 597, 635, 762, 810, 995, 1143, 1194, 1270, 1791, 1905, 1990, 2286, 2985, 3429, 3582, 3810, 5373, 5715, 5970, 6858, 8955, 10287, 10746, 11430, 16119, 17145, 17910, 20574, 25273, 26865, 32238, 34290, 50546, 51435, 53730, 75819, 80595, 102870, 126365, 151638, 161190, 227457, 252730, 379095, 454914, 682371, 758190, 1137285, 1364742, 2047113, 2274570, 3411855, 4094226, 6823710, 10235565, 20471130]

約数ペア:

[(1, 20471130), (2, 10235565), (3, 6823710), (5, 4094226), (6, 3411855), (9, 2274570), (10, 2047113), (15, 1364742), (18, 1137285), (27, 758190), (30, 682371), (45, 454914), (54, 379095), (81, 252730), (90, 227457), (127, 161190), (135, 151638), (162, 126365), (199, 102870), (254, 80595), (270, 75819), (381, 53730), (398, 51435), (405, 50546), (597, 34290), (635, 32238), (762, 26865), (810, 25273), (995, 20574), (1143, 17910), (1194, 17145), (1270, 16119), (1791, 11430), (1905, 10746), (1990, 10287), (2286, 8955), (2985, 6858), (3429, 5970), (3582, 5715), (3810, 5373)]