80041780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{199}}^1$

素因数の和:258

約数の個数: 144

約数和(自身を含む): 221356800

約数和(自身を除く): 141315020

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 17, 20, 26, 28, 34, 35, 52, 65, 68, 70, 85, 91, 119, 130, 140, 169, 170, 182, 199, 221, 238, 260, 338, 340, 364, 398, 442, 455, 476, 595, 676, 796, 845, 884, 910, 995, 1105, 1183, 1190, 1393, 1547, 1690, 1820, 1990, 2210, 2366, 2380, 2587, 2786, 2873, 3094, 3380, 3383, 3980, 4420, 4732, 5174, 5572, 5746, 5915, 6188, 6766, 6965, 7735, 10348, 11492, 11830, 12935, 13532, 13930, 14365, 15470, 16915, 18109, 20111, 23660, 23681, 25870, 27860, 28730, 30940, 33631, 33830, 36218, 40222, 43979, 47362, 51740, 57460, 67262, 67660, 72436, 80444, 87958, 90545, 94724, 100555, 118405, 134524, 168155, 175916, 181090, 201110, 219895, 235417, 236810, 307853, 336310, 362180, 402220, 439790, 470834, 473620, 571727, 615706, 672620, 879580, 941668, 1143454, 1177085, 1231412, 1539265, 2286908, 2354170, 2858635, 3078530, 4002089, 4708340, 5717270, 6157060, 8004178, 11434540, 16008356, 20010445, 40020890, 80041780]

約数ペア:

[(1, 80041780), (2, 40020890), (4, 20010445), (5, 16008356), (7, 11434540), (10, 8004178), (13, 6157060), (14, 5717270), (17, 4708340), (20, 4002089), (26, 3078530), (28, 2858635), (34, 2354170), (35, 2286908), (52, 1539265), (65, 1231412), (68, 1177085), (70, 1143454), (85, 941668), (91, 879580), (119, 672620), (130, 615706), (140, 571727), (169, 473620), (170, 470834), (182, 439790), (199, 402220), (221, 362180), (238, 336310), (260, 307853), (338, 236810), (340, 235417), (364, 219895), (398, 201110), (442, 181090), (455, 175916), (476, 168155), (595, 134524), (676, 118405), (796, 100555), (845, 94724), (884, 90545), (910, 87958), (995, 80444), (1105, 72436), (1183, 67660), (1190, 67262), (1393, 57460), (1547, 51740), (1690, 47362), (1820, 43979), (1990, 40222), (2210, 36218), (2366, 33830), (2380, 33631), (2587, 30940), (2786, 28730), (2873, 27860), (3094, 25870), (3380, 23681), (3383, 23660), (3980, 20111), (4420, 18109), (4732, 16915), (5174, 15470), (5572, 14365), (5746, 13930), (5915, 13532), (6188, 12935), (6766, 11830), (6965, 11492), (7735, 10348)]