68142440

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{15629}}^1$

素因数の和:15749

約数の個数: 32

約数和(自身を含む): 154737000

約数和(自身を除く): 86594560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 15629, 31258, 62516, 78145, 125032, 156290, 312580, 625160, 1703561, 3407122, 6814244, 8517805, 13628488, 17035610, 34071220, 68142440]

約数ペア:

[(1, 68142440), (2, 34071220), (4, 17035610), (5, 13628488), (8, 8517805), (10, 6814244), (20, 3407122), (40, 1703561), (109, 625160), (218, 312580), (436, 156290), (545, 125032), (872, 78145), (1090, 62516), (2180, 31258), (4360, 15629)]