2134220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 4989600

約数和(自身を除く): 2855380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 109, 110, 178, 218, 220, 356, 436, 445, 545, 890, 979, 1090, 1199, 1780, 1958, 2180, 2398, 3916, 4796, 4895, 5995, 9701, 9790, 11990, 19402, 19580, 23980, 38804, 48505, 97010, 106711, 194020, 213422, 426844, 533555, 1067110, 2134220]

約数ペア:

[(1, 2134220), (2, 1067110), (4, 533555), (5, 426844), (10, 213422), (11, 194020), (20, 106711), (22, 97010), (44, 48505), (55, 38804), (89, 23980), (109, 19580), (110, 19402), (178, 11990), (218, 9790), (220, 9701), (356, 5995), (436, 4895), (445, 4796), (545, 3916), (890, 2398), (979, 2180), (1090, 1958), (1199, 1780)]