18642580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{839}}^1$

素因数の和:960

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 24540140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 839, 1010, 1111, 1678, 2020, 2222, 3356, 4195, 4444, 5555, 8390, 9229, 11110, 16780, 18458, 22220, 36916, 46145, 84739, 92290, 169478, 184580, 338956, 423695, 847390, 932129, 1694780, 1864258, 3728516, 4660645, 9321290, 18642580]

約数ペア:

[(1, 18642580), (2, 9321290), (4, 4660645), (5, 3728516), (10, 1864258), (11, 1694780), (20, 932129), (22, 847390), (44, 423695), (55, 338956), (101, 184580), (110, 169478), (202, 92290), (220, 84739), (404, 46145), (505, 36916), (839, 22220), (1010, 18458), (1111, 16780), (1678, 11110), (2020, 9229), (2222, 8390), (3356, 5555), (4195, 4444)]