1778385280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5591}}^1$

素因数の和:5688

約数の個数: 128

約数和(自身を含む): 4928117760

約数和(自身を除く): 3149732480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 80, 112, 128, 140, 142, 160, 224, 280, 284, 320, 355, 448, 497, 560, 568, 640, 710, 896, 994, 1120, 1136, 1420, 1988, 2240, 2272, 2485, 2840, 3976, 4480, 4544, 4970, 5591, 5680, 7952, 9088, 9940, 11182, 11360, 15904, 19880, 22364, 22720, 27955, 31808, 39137, 39760, 44728, 45440, 55910, 63616, 78274, 79520, 89456, 111820, 156548, 159040, 178912, 195685, 223640, 313096, 318080, 357824, 391370, 396961, 447280, 626192, 715648, 782740, 793922, 894560, 1252384, 1565480, 1587844, 1789120, 1984805, 2504768, 2778727, 3130960, 3175688, 3578240, 3969610, 5009536, 5557454, 6261920, 6351376, 7939220, 11114908, 12523840, 12702752, 13893635, 15878440, 22229816, 25047680, 25405504, 27787270, 31756880, 44459632, 50811008, 55574540, 63513760, 88919264, 111149080, 127027520, 177838528, 222298160, 254055040, 355677056, 444596320, 889192640, 1778385280]

約数ペア:

[(1, 1778385280), (2, 889192640), (4, 444596320), (5, 355677056), (7, 254055040), (8, 222298160), (10, 177838528), (14, 127027520), (16, 111149080), (20, 88919264), (28, 63513760), (32, 55574540), (35, 50811008), (40, 44459632), (56, 31756880), (64, 27787270), (70, 25405504), (71, 25047680), (80, 22229816), (112, 15878440), (128, 13893635), (140, 12702752), (142, 12523840), (160, 11114908), (224, 7939220), (280, 6351376), (284, 6261920), (320, 5557454), (355, 5009536), (448, 3969610), (497, 3578240), (560, 3175688), (568, 3130960), (640, 2778727), (710, 2504768), (896, 1984805), (994, 1789120), (1120, 1587844), (1136, 1565480), (1420, 1252384), (1988, 894560), (2240, 793922), (2272, 782740), (2485, 715648), (2840, 626192), (3976, 447280), (4480, 396961), (4544, 391370), (4970, 357824), (5591, 318080), (5680, 313096), (7952, 223640), (9088, 195685), (9940, 178912), (11182, 159040), (11360, 156548), (15904, 111820), (19880, 89456), (22364, 79520), (22720, 78274), (27955, 63616), (31808, 55910), (39137, 45440), (39760, 44728)]