81663712

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{196307}}^1$

素因数の和:196330

約数の個数: 24

約数和(自身を含む): 173143656

約数和(自身を除く): 91479944

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 196307, 392614, 785228, 1570456, 2551991, 3140912, 5103982, 6281824, 10207964, 20415928, 40831856, 81663712]

約数ペア:

[(1, 81663712), (2, 40831856), (4, 20415928), (8, 10207964), (13, 6281824), (16, 5103982), (26, 3140912), (32, 2551991), (52, 1570456), (104, 785228), (208, 392614), (416, 196307)]