19872736

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:144

約数の個数: 96

約数和(自身を含む): 46061568

約数和(自身を除く): 26188832

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 31, 32, 46, 52, 62, 67, 92, 104, 124, 134, 184, 208, 248, 268, 299, 368, 403, 416, 496, 536, 598, 713, 736, 806, 871, 992, 1072, 1196, 1426, 1541, 1612, 1742, 2077, 2144, 2392, 2852, 3082, 3224, 3484, 4154, 4784, 5704, 6164, 6448, 6968, 8308, 9269, 9568, 11408, 12328, 12896, 13936, 16616, 18538, 20033, 22816, 24656, 27001, 27872, 33232, 37076, 40066, 47771, 49312, 54002, 66464, 74152, 80132, 95542, 108004, 148304, 160264, 191084, 216008, 296608, 320528, 382168, 432016, 621023, 641056, 764336, 864032, 1242046, 1528672, 2484092, 4968184, 9936368, 19872736]

約数ペア:

[(1, 19872736), (2, 9936368), (4, 4968184), (8, 2484092), (13, 1528672), (16, 1242046), (23, 864032), (26, 764336), (31, 641056), (32, 621023), (46, 432016), (52, 382168), (62, 320528), (67, 296608), (92, 216008), (104, 191084), (124, 160264), (134, 148304), (184, 108004), (208, 95542), (248, 80132), (268, 74152), (299, 66464), (368, 54002), (403, 49312), (416, 47771), (496, 40066), (536, 37076), (598, 33232), (713, 27872), (736, 27001), (806, 24656), (871, 22816), (992, 20033), (1072, 18538), (1196, 16616), (1426, 13936), (1541, 12896), (1612, 12328), (1742, 11408), (2077, 9568), (2144, 9269), (2392, 8308), (2852, 6968), (3082, 6448), (3224, 6164), (3484, 5704), (4154, 4784)]