19564720

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:88

約数の個数: 160

約数和(自身を含む): 57139200

約数和(自身を除く): 37574480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 31, 35, 40, 46, 49, 56, 62, 70, 80, 92, 98, 112, 115, 124, 140, 155, 161, 184, 196, 217, 230, 245, 248, 280, 310, 322, 343, 368, 392, 434, 460, 490, 496, 560, 620, 644, 686, 713, 784, 805, 868, 920, 980, 1085, 1127, 1240, 1288, 1372, 1426, 1519, 1610, 1715, 1736, 1840, 1960, 2170, 2254, 2480, 2576, 2744, 2852, 3038, 3220, 3430, 3472, 3565, 3920, 4340, 4508, 4991, 5488, 5635, 5704, 6076, 6440, 6860, 7130, 7595, 7889, 8680, 9016, 9982, 10633, 11270, 11408, 12152, 12880, 13720, 14260, 15190, 15778, 17360, 18032, 19964, 21266, 22540, 24304, 24955, 27440, 28520, 30380, 31556, 34937, 39445, 39928, 42532, 45080, 49910, 53165, 57040, 60760, 63112, 69874, 78890, 79856, 85064, 90160, 99820, 106330, 121520, 126224, 139748, 157780, 170128, 174685, 199640, 212660, 244559, 279496, 315560, 349370, 399280, 425320, 489118, 558992, 631120, 698740, 850640, 978236, 1222795, 1397480, 1956472, 2445590, 2794960, 3912944, 4891180, 9782360, 19564720]

約数ペア:

[(1, 19564720), (2, 9782360), (4, 4891180), (5, 3912944), (7, 2794960), (8, 2445590), (10, 1956472), (14, 1397480), (16, 1222795), (20, 978236), (23, 850640), (28, 698740), (31, 631120), (35, 558992), (40, 489118), (46, 425320), (49, 399280), (56, 349370), (62, 315560), (70, 279496), (80, 244559), (92, 212660), (98, 199640), (112, 174685), (115, 170128), (124, 157780), (140, 139748), (155, 126224), (161, 121520), (184, 106330), (196, 99820), (217, 90160), (230, 85064), (245, 79856), (248, 78890), (280, 69874), (310, 63112), (322, 60760), (343, 57040), (368, 53165), (392, 49910), (434, 45080), (460, 42532), (490, 39928), (496, 39445), (560, 34937), (620, 31556), (644, 30380), (686, 28520), (713, 27440), (784, 24955), (805, 24304), (868, 22540), (920, 21266), (980, 19964), (1085, 18032), (1127, 17360), (1240, 15778), (1288, 15190), (1372, 14260), (1426, 13720), (1519, 12880), (1610, 12152), (1715, 11408), (1736, 11270), (1840, 10633), (1960, 9982), (2170, 9016), (2254, 8680), (2480, 7889), (2576, 7595), (2744, 7130), (2852, 6860), (3038, 6440), (3220, 6076), (3430, 5704), (3472, 5635), (3565, 5488), (3920, 4991), (4340, 4508)]