19938370760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{81943}}^1$

素因数の和:82051

約数の個数: 128

約数和(自身を含む): 56639692800

約数和(自身を除く): 36701322040

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 79, 88, 110, 140, 154, 158, 220, 280, 308, 316, 385, 395, 440, 553, 616, 632, 770, 790, 869, 1106, 1540, 1580, 1738, 2212, 2765, 3080, 3160, 3476, 4345, 4424, 5530, 6083, 6952, 8690, 11060, 12166, 17380, 22120, 24332, 30415, 34760, 48664, 60830, 81943, 121660, 163886, 243320, 327772, 409715, 573601, 655544, 819430, 901373, 1147202, 1638860, 1802746, 2294404, 2868005, 3277720, 3605492, 4506865, 4588808, 5736010, 6309611, 6473497, 7210984, 9013730, 11472020, 12619222, 12946994, 18027460, 22944040, 25238444, 25893988, 31548055, 32367485, 36054920, 45314479, 50476888, 51787976, 63096110, 64734970, 71208467, 90628958, 126192220, 129469940, 142416934, 181257916, 226572395, 252384440, 258939880, 284833868, 356042335, 362515832, 453144790, 498459269, 569667736, 712084670, 906289580, 996918538, 1424169340, 1812579160, 1993837076, 2492296345, 2848338680, 3987674152, 4984592690, 9969185380, 19938370760]

約数ペア:

[(1, 19938370760), (2, 9969185380), (4, 4984592690), (5, 3987674152), (7, 2848338680), (8, 2492296345), (10, 1993837076), (11, 1812579160), (14, 1424169340), (20, 996918538), (22, 906289580), (28, 712084670), (35, 569667736), (40, 498459269), (44, 453144790), (55, 362515832), (56, 356042335), (70, 284833868), (77, 258939880), (79, 252384440), (88, 226572395), (110, 181257916), (140, 142416934), (154, 129469940), (158, 126192220), (220, 90628958), (280, 71208467), (308, 64734970), (316, 63096110), (385, 51787976), (395, 50476888), (440, 45314479), (553, 36054920), (616, 32367485), (632, 31548055), (770, 25893988), (790, 25238444), (869, 22944040), (1106, 18027460), (1540, 12946994), (1580, 12619222), (1738, 11472020), (2212, 9013730), (2765, 7210984), (3080, 6473497), (3160, 6309611), (3476, 5736010), (4345, 4588808), (4424, 4506865), (5530, 3605492), (6083, 3277720), (6952, 2868005), (8690, 2294404), (11060, 1802746), (12166, 1638860), (17380, 1147202), (22120, 901373), (24332, 819430), (30415, 655544), (34760, 573601), (48664, 409715), (60830, 327772), (81943, 243320), (121660, 163886)]