28643780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{130199}}^1$

素因数の和:130219

約数の個数: 24

約数和(自身を含む): 65620800

約数和(自身を除く): 36977020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 130199, 260398, 520796, 650995, 1301990, 1432189, 2603980, 2864378, 5728756, 7160945, 14321890, 28643780]

約数ペア:

[(1, 28643780), (2, 14321890), (4, 7160945), (5, 5728756), (10, 2864378), (11, 2603980), (20, 1432189), (22, 1301990), (44, 650995), (55, 520796), (110, 260398), (220, 130199)]