18859190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{643}}^1$

素因数の和:1076

約数の個数: 32

約数和(自身を含む): 38949120

約数和(自身を除く): 20089930

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 419, 643, 838, 1286, 2095, 2933, 3215, 4190, 4501, 5866, 6430, 9002, 14665, 22505, 29330, 45010, 269417, 538834, 1347085, 1885919, 2694170, 3771838, 9429595, 18859190]

約数ペア:

[(1, 18859190), (2, 9429595), (5, 3771838), (7, 2694170), (10, 1885919), (14, 1347085), (35, 538834), (70, 269417), (419, 45010), (643, 29330), (838, 22505), (1286, 14665), (2095, 9002), (2933, 6430), (3215, 5866), (4190, 4501)]