28487140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4177}}^1$

素因数の和:4228

約数の個数: 48

約数和(自身を含む): 67382784

約数和(自身を除く): 38895644

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 4177, 6820, 8354, 16708, 20885, 41770, 45947, 83540, 91894, 129487, 183788, 229735, 258974, 459470, 517948, 647435, 918940, 1294870, 1424357, 2589740, 2848714, 5697428, 7121785, 14243570, 28487140]

約数ペア:

[(1, 28487140), (2, 14243570), (4, 7121785), (5, 5697428), (10, 2848714), (11, 2589740), (20, 1424357), (22, 1294870), (31, 918940), (44, 647435), (55, 517948), (62, 459470), (110, 258974), (124, 229735), (155, 183788), (220, 129487), (310, 91894), (341, 83540), (620, 45947), (682, 41770), (1364, 20885), (1705, 16708), (3410, 8354), (4177, 6820)]