1815260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 4263840

約数和(自身を除く): 2448580

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 281, 323, 340, 380, 562, 646, 1124, 1292, 1405, 1615, 2810, 3230, 4777, 5339, 5620, 6460, 9554, 10678, 19108, 21356, 23885, 26695, 47770, 53390, 90763, 95540, 106780, 181526, 363052, 453815, 907630, 1815260]

約数ペア:

[(1, 1815260), (2, 907630), (4, 453815), (5, 363052), (10, 181526), (17, 106780), (19, 95540), (20, 90763), (34, 53390), (38, 47770), (68, 26695), (76, 23885), (85, 21356), (95, 19108), (170, 10678), (190, 9554), (281, 6460), (323, 5620), (340, 5339), (380, 4777), (562, 3230), (646, 2810), (1124, 1615), (1292, 1405)]