27780620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3253}}^1$

素因数の和:3330

約数の個数: 48

約数和(自身を含む): 67787328

約数和(自身を除く): 40006708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 3253, 4270, 6506, 8540, 13012, 16265, 22771, 32530, 45542, 65060, 91084, 113855, 198433, 227710, 396866, 455420, 793732, 992165, 1389031, 1984330, 2778062, 3968660, 5556124, 6945155, 13890310, 27780620]

約数ペア:

[(1, 27780620), (2, 13890310), (4, 6945155), (5, 5556124), (7, 3968660), (10, 2778062), (14, 1984330), (20, 1389031), (28, 992165), (35, 793732), (61, 455420), (70, 396866), (122, 227710), (140, 198433), (244, 113855), (305, 91084), (427, 65060), (610, 45542), (854, 32530), (1220, 22771), (1708, 16265), (2135, 13012), (3253, 8540), (4270, 6506)]