178992540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{263}}^1$

素因数の和:496

約数の個数: 144

約数和(自身を含む): 576576000

約数和(自身を除く): 397583460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 199, 228, 263, 285, 342, 380, 398, 526, 570, 597, 684, 789, 796, 855, 995, 1052, 1140, 1194, 1315, 1578, 1710, 1791, 1990, 2367, 2388, 2630, 2985, 3156, 3420, 3582, 3781, 3945, 3980, 4734, 4997, 5260, 5970, 7164, 7562, 7890, 8955, 9468, 9994, 11343, 11835, 11940, 14991, 15124, 15780, 17910, 18905, 19988, 22686, 23670, 24985, 29982, 34029, 35820, 37810, 44973, 45372, 47340, 49970, 52337, 56715, 59964, 68058, 74955, 75620, 89946, 99940, 104674, 113430, 136116, 149910, 157011, 170145, 179892, 209348, 224865, 226860, 261685, 299820, 314022, 340290, 449730, 471033, 523370, 628044, 680580, 785055, 899460, 942066, 994403, 1046740, 1570110, 1884132, 1988806, 2355165, 2983209, 3140220, 3977612, 4710330, 4972015, 5966418, 8949627, 9420660, 9944030, 11932836, 14916045, 17899254, 19888060, 29832090, 35798508, 44748135, 59664180, 89496270, 178992540]

約数ペア:

[(1, 178992540), (2, 89496270), (3, 59664180), (4, 44748135), (5, 35798508), (6, 29832090), (9, 19888060), (10, 17899254), (12, 14916045), (15, 11932836), (18, 9944030), (19, 9420660), (20, 8949627), (30, 5966418), (36, 4972015), (38, 4710330), (45, 3977612), (57, 3140220), (60, 2983209), (76, 2355165), (90, 1988806), (95, 1884132), (114, 1570110), (171, 1046740), (180, 994403), (190, 942066), (199, 899460), (228, 785055), (263, 680580), (285, 628044), (342, 523370), (380, 471033), (398, 449730), (526, 340290), (570, 314022), (597, 299820), (684, 261685), (789, 226860), (796, 224865), (855, 209348), (995, 179892), (1052, 170145), (1140, 157011), (1194, 149910), (1315, 136116), (1578, 113430), (1710, 104674), (1791, 99940), (1990, 89946), (2367, 75620), (2388, 74955), (2630, 68058), (2985, 59964), (3156, 56715), (3420, 52337), (3582, 49970), (3781, 47340), (3945, 45372), (3980, 44973), (4734, 37810), (4997, 35820), (5260, 34029), (5970, 29982), (7164, 24985), (7562, 23670), (7890, 22686), (8955, 19988), (9468, 18905), (9994, 17910), (11343, 15780), (11835, 15124), (11940, 14991)]