28656800

素因数分解:

$2^5\times 5^2\times {\mathrm{113}}^1\times {\mathrm{317}}^1$

素因数の和:450

約数の個数: 72

約数和(自身を含む): 70800156

約数和(自身を除く): 42143356

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 113, 160, 200, 226, 317, 400, 452, 565, 634, 800, 904, 1130, 1268, 1585, 1808, 2260, 2536, 2825, 3170, 3616, 4520, 5072, 5650, 6340, 7925, 9040, 10144, 11300, 12680, 15850, 18080, 22600, 25360, 31700, 35821, 45200, 50720, 63400, 71642, 90400, 126800, 143284, 179105, 253600, 286568, 358210, 573136, 716420, 895525, 1146272, 1432840, 1791050, 2865680, 3582100, 5731360, 7164200, 14328400, 28656800]

約数ペア:

[(1, 28656800), (2, 14328400), (4, 7164200), (5, 5731360), (8, 3582100), (10, 2865680), (16, 1791050), (20, 1432840), (25, 1146272), (32, 895525), (40, 716420), (50, 573136), (80, 358210), (100, 286568), (113, 253600), (160, 179105), (200, 143284), (226, 126800), (317, 90400), (400, 71642), (452, 63400), (565, 50720), (634, 45200), (800, 35821), (904, 31700), (1130, 25360), (1268, 22600), (1585, 18080), (1808, 15850), (2260, 12680), (2536, 11300), (2825, 10144), (3170, 9040), (3616, 7925), (4520, 6340), (5072, 5650)]