890780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4049}}^1$

素因数の和:4069

約数の個数: 24

約数和(自身を含む): 2041200

約数和(自身を除く): 1150420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 4049, 8098, 16196, 20245, 40490, 44539, 80980, 89078, 178156, 222695, 445390, 890780]

約数ペア:

[(1, 890780), (2, 445390), (4, 222695), (5, 178156), (10, 89078), (11, 80980), (20, 44539), (22, 40490), (44, 20245), (55, 16196), (110, 8098), (220, 4049)]