158881520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{40531}}^1$

素因数の和:40558

約数の個数: 60

約数和(自身を含む): 429720264

約数和(自身を除く): 270838744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 40531, 81062, 162124, 202655, 283717, 324248, 405310, 567434, 648496, 810620, 1134868, 1418585, 1621240, 1986019, 2269736, 2837170, 3242480, 3972038, 4539472, 5674340, 7944076, 9930095, 11348680, 15888152, 19860190, 22697360, 31776304, 39720380, 79440760, 158881520]

約数ペア:

[(1, 158881520), (2, 79440760), (4, 39720380), (5, 31776304), (7, 22697360), (8, 19860190), (10, 15888152), (14, 11348680), (16, 9930095), (20, 7944076), (28, 5674340), (35, 4539472), (40, 3972038), (49, 3242480), (56, 2837170), (70, 2269736), (80, 1986019), (98, 1621240), (112, 1418585), (140, 1134868), (196, 810620), (245, 648496), (280, 567434), (392, 405310), (490, 324248), (560, 283717), (784, 202655), (980, 162124), (1960, 81062), (3920, 40531)]