78258880

素因数分解:

$2^6\times 5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:92

約数の個数: 224

約数和(自身を含む): 234086400

約数和(自身を除く): 155827520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 31, 32, 35, 40, 46, 49, 56, 62, 64, 70, 80, 92, 98, 112, 115, 124, 140, 155, 160, 161, 184, 196, 217, 224, 230, 245, 248, 280, 310, 320, 322, 343, 368, 392, 434, 448, 460, 490, 496, 560, 620, 644, 686, 713, 736, 784, 805, 868, 920, 980, 992, 1085, 1120, 1127, 1240, 1288, 1372, 1426, 1472, 1519, 1568, 1610, 1715, 1736, 1840, 1960, 1984, 2170, 2240, 2254, 2480, 2576, 2744, 2852, 3038, 3136, 3220, 3430, 3472, 3565, 3680, 3920, 4340, 4508, 4960, 4991, 5152, 5488, 5635, 5704, 6076, 6440, 6860, 6944, 7130, 7360, 7595, 7840, 7889, 8680, 9016, 9920, 9982, 10304, 10633, 10976, 11270, 11408, 12152, 12880, 13720, 13888, 14260, 15190, 15680, 15778, 17360, 18032, 19964, 21266, 21952, 22540, 22816, 24304, 24955, 25760, 27440, 28520, 30380, 31556, 34720, 34937, 36064, 39445, 39928, 42532, 45080, 45632, 48608, 49910, 51520, 53165, 54880, 57040, 60760, 63112, 69440, 69874, 72128, 78890, 79856, 85064, 90160, 97216, 99820, 106330, 109760, 114080, 121520, 126224, 139748, 157780, 159712, 170128, 174685, 180320, 199640, 212660, 228160, 243040, 244559, 252448, 279496, 315560, 319424, 340256, 349370, 360640, 399280, 425320, 486080, 489118, 504896, 558992, 631120, 680512, 698740, 798560, 850640, 978236, 1117984, 1222795, 1262240, 1397480, 1597120, 1701280, 1956472, 2235968, 2445590, 2524480, 2794960, 3402560, 3912944, 4891180, 5589920, 7825888, 9782360, 11179840, 15651776, 19564720, 39129440, 78258880]

約数ペア:

[(1, 78258880), (2, 39129440), (4, 19564720), (5, 15651776), (7, 11179840), (8, 9782360), (10, 7825888), (14, 5589920), (16, 4891180), (20, 3912944), (23, 3402560), (28, 2794960), (31, 2524480), (32, 2445590), (35, 2235968), (40, 1956472), (46, 1701280), (49, 1597120), (56, 1397480), (62, 1262240), (64, 1222795), (70, 1117984), (80, 978236), (92, 850640), (98, 798560), (112, 698740), (115, 680512), (124, 631120), (140, 558992), (155, 504896), (160, 489118), (161, 486080), (184, 425320), (196, 399280), (217, 360640), (224, 349370), (230, 340256), (245, 319424), (248, 315560), (280, 279496), (310, 252448), (320, 244559), (322, 243040), (343, 228160), (368, 212660), (392, 199640), (434, 180320), (448, 174685), (460, 170128), (490, 159712), (496, 157780), (560, 139748), (620, 126224), (644, 121520), (686, 114080), (713, 109760), (736, 106330), (784, 99820), (805, 97216), (868, 90160), (920, 85064), (980, 79856), (992, 78890), (1085, 72128), (1120, 69874), (1127, 69440), (1240, 63112), (1288, 60760), (1372, 57040), (1426, 54880), (1472, 53165), (1519, 51520), (1568, 49910), (1610, 48608), (1715, 45632), (1736, 45080), (1840, 42532), (1960, 39928), (1984, 39445), (2170, 36064), (2240, 34937), (2254, 34720), (2480, 31556), (2576, 30380), (2744, 28520), (2852, 27440), (3038, 25760), (3136, 24955), (3220, 24304), (3430, 22816), (3472, 22540), (3565, 21952), (3680, 21266), (3920, 19964), (4340, 18032), (4508, 17360), (4960, 15778), (4991, 15680), (5152, 15190), (5488, 14260), (5635, 13888), (5704, 13720), (6076, 12880), (6440, 12152), (6860, 11408), (6944, 11270), (7130, 10976), (7360, 10633), (7595, 10304), (7840, 9982), (7889, 9920), (8680, 9016)]