81967160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{599}}^1$

素因数の和:932

約数の個数: 64

約数和(自身を含む): 202176000

約数和(自身を除く): 120208840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 311, 440, 599, 622, 1198, 1244, 1555, 2396, 2488, 2995, 3110, 3421, 4792, 5990, 6220, 6589, 6842, 11980, 12440, 13178, 13684, 17105, 23960, 26356, 27368, 32945, 34210, 52712, 65890, 68420, 131780, 136840, 186289, 263560, 372578, 745156, 931445, 1490312, 1862890, 2049179, 3725780, 4098358, 7451560, 8196716, 10245895, 16393432, 20491790, 40983580, 81967160]

約数ペア:

[(1, 81967160), (2, 40983580), (4, 20491790), (5, 16393432), (8, 10245895), (10, 8196716), (11, 7451560), (20, 4098358), (22, 3725780), (40, 2049179), (44, 1862890), (55, 1490312), (88, 931445), (110, 745156), (220, 372578), (311, 263560), (440, 186289), (599, 136840), (622, 131780), (1198, 68420), (1244, 65890), (1555, 52712), (2396, 34210), (2488, 32945), (2995, 27368), (3110, 26356), (3421, 23960), (4792, 17105), (5990, 13684), (6220, 13178), (6589, 12440), (6842, 11980)]