261352600

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{68777}}^1$

素因数の和:68812

約数の個数: 48

約数和(自身を含む): 639635400

約数和(自身を除く): 378282800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 68777, 137554, 275108, 343885, 550216, 687770, 1306763, 1375540, 1719425, 2613526, 2751080, 3438850, 5227052, 6533815, 6877700, 10454104, 13067630, 13755400, 26135260, 32669075, 52270520, 65338150, 130676300, 261352600]

約数ペア:

[(1, 261352600), (2, 130676300), (4, 65338150), (5, 52270520), (8, 32669075), (10, 26135260), (19, 13755400), (20, 13067630), (25, 10454104), (38, 6877700), (40, 6533815), (50, 5227052), (76, 3438850), (95, 2751080), (100, 2613526), (152, 1719425), (190, 1375540), (200, 1306763), (380, 687770), (475, 550216), (760, 343885), (950, 275108), (1900, 137554), (3800, 68777)]