88893880

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{3467}}^1$

素因数の和:4119

約数の個数: 32

約数和(自身を含む): 200381040

約数和(自身を除く): 111487160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2564, 3205, 3467, 5128, 6410, 6934, 12820, 13868, 17335, 25640, 27736, 34670, 69340, 138680, 2222347, 4444694, 8889388, 11111735, 17778776, 22223470, 44446940, 88893880]

約数ペア:

[(1, 88893880), (2, 44446940), (4, 22223470), (5, 17778776), (8, 11111735), (10, 8889388), (20, 4444694), (40, 2222347), (641, 138680), (1282, 69340), (2564, 34670), (3205, 27736), (3467, 25640), (5128, 17335), (6410, 13868), (6934, 12820)]