7942220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2777}}^1$

素因数の和:2810

約数の個数: 48

約数和(自身を含む): 19601568

約数和(自身を除く): 11659348

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2777, 2860, 5554, 11108, 13885, 27770, 30547, 36101, 55540, 61094, 72202, 122188, 144404, 152735, 180505, 305470, 361010, 397111, 610940, 722020, 794222, 1588444, 1985555, 3971110, 7942220]

約数ペア:

[(1, 7942220), (2, 3971110), (4, 1985555), (5, 1588444), (10, 794222), (11, 722020), (13, 610940), (20, 397111), (22, 361010), (26, 305470), (44, 180505), (52, 152735), (55, 144404), (65, 122188), (110, 72202), (130, 61094), (143, 55540), (220, 36101), (260, 30547), (286, 27770), (572, 13885), (715, 11108), (1430, 5554), (2777, 2860)]