180620920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{265619}}^1$

素因数の和:265647

約数の個数: 32

約数和(自身を含む): 430304400

約数和(自身を除く): 249683480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 265619, 531238, 1062476, 1328095, 2124952, 2656190, 4515523, 5312380, 9031046, 10624760, 18062092, 22577615, 36124184, 45155230, 90310460, 180620920]

約数ペア:

[(1, 180620920), (2, 90310460), (4, 45155230), (5, 36124184), (8, 22577615), (10, 18062092), (17, 10624760), (20, 9031046), (34, 5312380), (40, 4515523), (68, 2656190), (85, 2124952), (136, 1328095), (170, 1062476), (340, 531238), (680, 265619)]