20182823920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{493709}}^1$

素因数の和:493802

約数の個数: 80

約数和(自身を含む): 54363395520

約数和(自身を除く): 34180571600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 73, 80, 112, 140, 146, 280, 292, 365, 511, 560, 584, 730, 1022, 1168, 1460, 2044, 2555, 2920, 4088, 5110, 5840, 8176, 10220, 20440, 40880, 493709, 987418, 1974836, 2468545, 3455963, 3949672, 4937090, 6911926, 7899344, 9874180, 13823852, 17279815, 19748360, 27647704, 34559630, 36040757, 39496720, 55295408, 69119260, 72081514, 138238520, 144163028, 180203785, 252285299, 276477040, 288326056, 360407570, 504570598, 576652112, 720815140, 1009141196, 1261426495, 1441630280, 2018282392, 2522852990, 2883260560, 4036564784, 5045705980, 10091411960, 20182823920]

約数ペア:

[(1, 20182823920), (2, 10091411960), (4, 5045705980), (5, 4036564784), (7, 2883260560), (8, 2522852990), (10, 2018282392), (14, 1441630280), (16, 1261426495), (20, 1009141196), (28, 720815140), (35, 576652112), (40, 504570598), (56, 360407570), (70, 288326056), (73, 276477040), (80, 252285299), (112, 180203785), (140, 144163028), (146, 138238520), (280, 72081514), (292, 69119260), (365, 55295408), (511, 39496720), (560, 36040757), (584, 34559630), (730, 27647704), (1022, 19748360), (1168, 17279815), (1460, 13823852), (2044, 9874180), (2555, 7899344), (2920, 6911926), (4088, 4937090), (5110, 3949672), (5840, 3455963), (8176, 2468545), (10220, 1974836), (20440, 987418), (40880, 493709)]