18245260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{347}}^1$

素因数の和:606

約数の個数: 48

約数和(自身を含む): 42094080

約数和(自身を除く): 23848820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 239, 347, 478, 694, 956, 1195, 1388, 1735, 2390, 2629, 3470, 3817, 4780, 5258, 6940, 7634, 10516, 13145, 15268, 19085, 26290, 38170, 52580, 76340, 82933, 165866, 331732, 414665, 829330, 912263, 1658660, 1824526, 3649052, 4561315, 9122630, 18245260]

約数ペア:

[(1, 18245260), (2, 9122630), (4, 4561315), (5, 3649052), (10, 1824526), (11, 1658660), (20, 912263), (22, 829330), (44, 414665), (55, 331732), (110, 165866), (220, 82933), (239, 76340), (347, 52580), (478, 38170), (694, 26290), (956, 19085), (1195, 15268), (1388, 13145), (1735, 10516), (2390, 7634), (2629, 6940), (3470, 5258), (3817, 4780)]