123189920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{827}}^1$

素因数の和:875

約数の個数: 144

約数和(自身を含む): 356801760

約数和(自身を除く): 233611840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 160, 190, 196, 224, 245, 266, 280, 304, 380, 392, 490, 532, 560, 608, 665, 760, 784, 827, 931, 980, 1064, 1120, 1330, 1520, 1568, 1654, 1862, 1960, 2128, 2660, 3040, 3308, 3724, 3920, 4135, 4256, 4655, 5320, 5789, 6616, 7448, 7840, 8270, 9310, 10640, 11578, 13232, 14896, 15713, 16540, 18620, 21280, 23156, 26464, 28945, 29792, 31426, 33080, 37240, 40523, 46312, 57890, 62852, 66160, 74480, 78565, 81046, 92624, 109991, 115780, 125704, 132320, 148960, 157130, 162092, 185248, 202615, 219982, 231560, 251408, 314260, 324184, 405230, 439964, 463120, 502816, 549955, 628520, 648368, 769937, 810460, 879928, 926240, 1099910, 1257040, 1296736, 1539874, 1620920, 1759856, 2199820, 2514080, 3079748, 3241840, 3519712, 3849685, 4399640, 6159496, 6483680, 7699370, 8799280, 12318992, 15398740, 17598560, 24637984, 30797480, 61594960, 123189920]

約数ペア:

[(1, 123189920), (2, 61594960), (4, 30797480), (5, 24637984), (7, 17598560), (8, 15398740), (10, 12318992), (14, 8799280), (16, 7699370), (19, 6483680), (20, 6159496), (28, 4399640), (32, 3849685), (35, 3519712), (38, 3241840), (40, 3079748), (49, 2514080), (56, 2199820), (70, 1759856), (76, 1620920), (80, 1539874), (95, 1296736), (98, 1257040), (112, 1099910), (133, 926240), (140, 879928), (152, 810460), (160, 769937), (190, 648368), (196, 628520), (224, 549955), (245, 502816), (266, 463120), (280, 439964), (304, 405230), (380, 324184), (392, 314260), (490, 251408), (532, 231560), (560, 219982), (608, 202615), (665, 185248), (760, 162092), (784, 157130), (827, 148960), (931, 132320), (980, 125704), (1064, 115780), (1120, 109991), (1330, 92624), (1520, 81046), (1568, 78565), (1654, 74480), (1862, 66160), (1960, 62852), (2128, 57890), (2660, 46312), (3040, 40523), (3308, 37240), (3724, 33080), (3920, 31426), (4135, 29792), (4256, 28945), (4655, 26464), (5320, 23156), (5789, 21280), (6616, 18620), (7448, 16540), (7840, 15713), (8270, 14896), (9310, 13232), (10640, 11578)]