220191340

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{1201}}^1$

素因数の和:1402

約数の個数: 48

約数和(自身を含む): 472530240

約数和(自身を除く): 252338900

約数列:

[1, 2, 4, 5, 10, 20, 89, 103, 178, 206, 356, 412, 445, 515, 890, 1030, 1201, 1780, 2060, 2402, 4804, 6005, 9167, 12010, 18334, 24020, 36668, 45835, 91670, 106889, 123703, 183340, 213778, 247406, 427556, 494812, 534445, 618515, 1068890, 1237030, 2137780, 2474060, 11009567, 22019134, 44038268, 55047835, 110095670, 220191340]

約数ペア:

[(1, 220191340), (2, 110095670), (4, 55047835), (5, 44038268), (10, 22019134), (20, 11009567), (89, 2474060), (103, 2137780), (178, 1237030), (206, 1068890), (356, 618515), (412, 534445), (445, 494812), (515, 427556), (890, 247406), (1030, 213778), (1201, 183340), (1780, 123703), (2060, 106889), (2402, 91670), (4804, 45835), (6005, 36668), (9167, 24020), (12010, 18334)]