208597840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{237043}}^1$

素因数の和:237067

約数の個数: 40

約数和(自身を含む): 529082208

約数和(自身を除く): 320484368

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 237043, 474086, 948172, 1185215, 1896344, 2370430, 2607473, 3792688, 4740860, 5214946, 9481720, 10429892, 13037365, 18963440, 20859784, 26074730, 41719568, 52149460, 104298920, 208597840]

約数ペア:

[(1, 208597840), (2, 104298920), (4, 52149460), (5, 41719568), (8, 26074730), (10, 20859784), (11, 18963440), (16, 13037365), (20, 10429892), (22, 9481720), (40, 5214946), (44, 4740860), (55, 3792688), (80, 2607473), (88, 2370430), (110, 1896344), (176, 1185215), (220, 948172), (440, 474086), (880, 237043)]