20794890340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1880189}}^1$

素因数の和:1880284

約数の個数: 48

約数和(自身を含む): 50539507200

約数和(自身を除く): 29744616860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 2212, 2765, 5530, 11060, 1880189, 3760378, 7520756, 9400945, 13161323, 18801890, 26322646, 37603780, 52645292, 65806615, 131613230, 148534931, 263226460, 297069862, 594139724, 742674655, 1039744517, 1485349310, 2079489034, 2970698620, 4158978068, 5198722585, 10397445170, 20794890340]

約数ペア:

[(1, 20794890340), (2, 10397445170), (4, 5198722585), (5, 4158978068), (7, 2970698620), (10, 2079489034), (14, 1485349310), (20, 1039744517), (28, 742674655), (35, 594139724), (70, 297069862), (79, 263226460), (140, 148534931), (158, 131613230), (316, 65806615), (395, 52645292), (553, 37603780), (790, 26322646), (1106, 18801890), (1580, 13161323), (2212, 9400945), (2765, 7520756), (5530, 3760378), (11060, 1880189)]