18863220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{13669}}^1$

素因数の和:13704

約数の個数: 48

約数和(自身を含む): 55117440

約数和(自身を除く): 36254220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 13669, 27338, 41007, 54676, 68345, 82014, 136690, 164028, 205035, 273380, 314387, 410070, 628774, 820140, 943161, 1257548, 1571935, 1886322, 3143870, 3772644, 4715805, 6287740, 9431610, 18863220]

約数ペア:

[(1, 18863220), (2, 9431610), (3, 6287740), (4, 4715805), (5, 3772644), (6, 3143870), (10, 1886322), (12, 1571935), (15, 1257548), (20, 943161), (23, 820140), (30, 628774), (46, 410070), (60, 314387), (69, 273380), (92, 205035), (115, 164028), (138, 136690), (230, 82014), (276, 68345), (345, 54676), (460, 41007), (690, 27338), (1380, 13669)]