20263120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13331}}^1$

素因数の和:13363

約数の個数: 40

約数和(自身を含む): 49595040

約数和(自身を除く): 29331920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13331, 26662, 53324, 66655, 106648, 133310, 213296, 253289, 266620, 506578, 533240, 1013156, 1066480, 1266445, 2026312, 2532890, 4052624, 5065780, 10131560, 20263120]

約数ペア:

[(1, 20263120), (2, 10131560), (4, 5065780), (5, 4052624), (8, 2532890), (10, 2026312), (16, 1266445), (19, 1066480), (20, 1013156), (38, 533240), (40, 506578), (76, 266620), (80, 253289), (95, 213296), (152, 133310), (190, 106648), (304, 66655), (380, 53324), (760, 26662), (1520, 13331)]