1381820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{571}}^1$

素因数の和:602

約数の個数: 36

約数和(自身を含む): 3195192

約数和(自身を除く): 1813372

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 571, 605, 1142, 1210, 2284, 2420, 2855, 5710, 6281, 11420, 12562, 25124, 31405, 62810, 69091, 125620, 138182, 276364, 345455, 690910, 1381820]

約数ペア:

[(1, 1381820), (2, 690910), (4, 345455), (5, 276364), (10, 138182), (11, 125620), (20, 69091), (22, 62810), (44, 31405), (55, 25124), (110, 12562), (121, 11420), (220, 6281), (242, 5710), (484, 2855), (571, 2420), (605, 2284), (1142, 1210)]