19750040

素因数分解:

$2^3\times 5^1\times {\mathrm{563}}^1\times {\mathrm{877}}^1$

素因数の和:1451

約数の個数: 32

約数和(自身を含む): 44567280

約数和(自身を除く): 24817240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 563, 877, 1126, 1754, 2252, 2815, 3508, 4385, 4504, 5630, 7016, 8770, 11260, 17540, 22520, 35080, 493751, 987502, 1975004, 2468755, 3950008, 4937510, 9875020, 19750040]

約数ペア:

[(1, 19750040), (2, 9875020), (4, 4937510), (5, 3950008), (8, 2468755), (10, 1975004), (20, 987502), (40, 493751), (563, 35080), (877, 22520), (1126, 17540), (1754, 11260), (2252, 8770), (2815, 7016), (3508, 5630), (4385, 4504)]