72297880

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{25457}}^1$

素因数の和:25539

約数の個数: 32

約数和(自身を含む): 164967840

約数和(自身を除く): 92669960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 25457, 50914, 101828, 127285, 203656, 254570, 509140, 1018280, 1807447, 3614894, 7229788, 9037235, 14459576, 18074470, 36148940, 72297880]

約数ペア:

[(1, 72297880), (2, 36148940), (4, 18074470), (5, 14459576), (8, 9037235), (10, 7229788), (20, 3614894), (40, 1807447), (71, 1018280), (142, 509140), (284, 254570), (355, 203656), (568, 127285), (710, 101828), (1420, 50914), (2840, 25457)]