64145680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{643}}^1$

素因数の和:728

約数の個数: 80

約数和(自身を含む): 158114880

約数和(自身を除く): 93969200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 43, 58, 80, 86, 116, 145, 172, 215, 232, 290, 344, 430, 464, 580, 643, 688, 860, 1160, 1247, 1286, 1720, 2320, 2494, 2572, 3215, 3440, 4988, 5144, 6235, 6430, 9976, 10288, 12470, 12860, 18647, 19952, 24940, 25720, 27649, 37294, 49880, 51440, 55298, 74588, 93235, 99760, 110596, 138245, 149176, 186470, 221192, 276490, 298352, 372940, 442384, 552980, 745880, 801821, 1105960, 1491760, 1603642, 2211920, 3207284, 4009105, 6414568, 8018210, 12829136, 16036420, 32072840, 64145680]

約数ペア:

[(1, 64145680), (2, 32072840), (4, 16036420), (5, 12829136), (8, 8018210), (10, 6414568), (16, 4009105), (20, 3207284), (29, 2211920), (40, 1603642), (43, 1491760), (58, 1105960), (80, 801821), (86, 745880), (116, 552980), (145, 442384), (172, 372940), (215, 298352), (232, 276490), (290, 221192), (344, 186470), (430, 149176), (464, 138245), (580, 110596), (643, 99760), (688, 93235), (860, 74588), (1160, 55298), (1247, 51440), (1286, 49880), (1720, 37294), (2320, 27649), (2494, 25720), (2572, 24940), (3215, 19952), (3440, 18647), (4988, 12860), (5144, 12470), (6235, 10288), (6430, 9976)]