2638600

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 6249600

約数和(自身を除く): 3611000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 167, 200, 316, 334, 395, 632, 668, 790, 835, 1336, 1580, 1670, 1975, 3160, 3340, 3950, 4175, 6680, 7900, 8350, 13193, 15800, 16700, 26386, 33400, 52772, 65965, 105544, 131930, 263860, 329825, 527720, 659650, 1319300, 2638600]

約数ペア:

[(1, 2638600), (2, 1319300), (4, 659650), (5, 527720), (8, 329825), (10, 263860), (20, 131930), (25, 105544), (40, 65965), (50, 52772), (79, 33400), (100, 26386), (158, 16700), (167, 15800), (200, 13193), (316, 8350), (334, 7900), (395, 6680), (632, 4175), (668, 3950), (790, 3340), (835, 3160), (1336, 1975), (1580, 1670)]