15279220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{349}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 35280000

約数和(自身を除く): 20000780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 199, 220, 349, 398, 698, 796, 995, 1396, 1745, 1990, 2189, 3490, 3839, 3980, 4378, 6980, 7678, 8756, 10945, 15356, 19195, 21890, 38390, 43780, 69451, 76780, 138902, 277804, 347255, 694510, 763961, 1389020, 1527922, 3055844, 3819805, 7639610, 15279220]

約数ペア:

[(1, 15279220), (2, 7639610), (4, 3819805), (5, 3055844), (10, 1527922), (11, 1389020), (20, 763961), (22, 694510), (44, 347255), (55, 277804), (110, 138902), (199, 76780), (220, 69451), (349, 43780), (398, 38390), (698, 21890), (796, 19195), (995, 15356), (1396, 10945), (1745, 8756), (1990, 7678), (2189, 6980), (3490, 4378), (3839, 3980)]