20041992

素因数分解:

$2^3\times 3^4\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:372

約数の個数: 80

約数和(自身を含む): 56780460

約数和(自身を除く): 36738468

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 157, 162, 197, 216, 314, 324, 394, 471, 591, 628, 648, 788, 942, 1182, 1256, 1413, 1576, 1773, 1884, 2364, 2826, 3546, 3768, 4239, 4728, 5319, 5652, 7092, 8478, 10638, 11304, 12717, 14184, 15957, 16956, 21276, 25434, 30929, 31914, 33912, 42552, 50868, 61858, 63828, 92787, 101736, 123716, 127656, 185574, 247432, 278361, 371148, 556722, 742296, 835083, 1113444, 1670166, 2226888, 2505249, 3340332, 5010498, 6680664, 10020996, 20041992]

約数ペア:

[(1, 20041992), (2, 10020996), (3, 6680664), (4, 5010498), (6, 3340332), (8, 2505249), (9, 2226888), (12, 1670166), (18, 1113444), (24, 835083), (27, 742296), (36, 556722), (54, 371148), (72, 278361), (81, 247432), (108, 185574), (157, 127656), (162, 123716), (197, 101736), (216, 92787), (314, 63828), (324, 61858), (394, 50868), (471, 42552), (591, 33912), (628, 31914), (648, 30929), (788, 25434), (942, 21276), (1182, 16956), (1256, 15957), (1413, 14184), (1576, 12717), (1773, 11304), (1884, 10638), (2364, 8478), (2826, 7092), (3546, 5652), (3768, 5319), (4239, 4728)]