19427960

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13127}}^1$

素因数の和:13175

約数の個数: 32

約数和(自身を含む): 44897760

約数和(自身を除く): 25469800

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 13127, 26254, 52508, 65635, 105016, 131270, 262540, 485699, 525080, 971398, 1942796, 2428495, 3885592, 4856990, 9713980, 19427960]

約数ペア:

[(1, 19427960), (2, 9713980), (4, 4856990), (5, 3885592), (8, 2428495), (10, 1942796), (20, 971398), (37, 525080), (40, 485699), (74, 262540), (148, 131270), (185, 105016), (296, 65635), (370, 52508), (740, 26254), (1480, 13127)]