28086400

素因数分解:

$2^7\times 5^2\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:222

約数の個数: 96

約数和(自身を含む): 70955280

約数和(自身を除く): 42868880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 67, 80, 100, 128, 131, 134, 160, 200, 262, 268, 320, 335, 400, 524, 536, 640, 655, 670, 800, 1048, 1072, 1310, 1340, 1600, 1675, 2096, 2144, 2620, 2680, 3200, 3275, 3350, 4192, 4288, 5240, 5360, 6550, 6700, 8384, 8576, 8777, 10480, 10720, 13100, 13400, 16768, 17554, 20960, 21440, 26200, 26800, 35108, 41920, 42880, 43885, 52400, 53600, 70216, 83840, 87770, 104800, 107200, 140432, 175540, 209600, 214400, 219425, 280864, 351080, 419200, 438850, 561728, 702160, 877700, 1123456, 1404320, 1755400, 2808640, 3510800, 5617280, 7021600, 14043200, 28086400]

約数ペア:

[(1, 28086400), (2, 14043200), (4, 7021600), (5, 5617280), (8, 3510800), (10, 2808640), (16, 1755400), (20, 1404320), (25, 1123456), (32, 877700), (40, 702160), (50, 561728), (64, 438850), (67, 419200), (80, 351080), (100, 280864), (128, 219425), (131, 214400), (134, 209600), (160, 175540), (200, 140432), (262, 107200), (268, 104800), (320, 87770), (335, 83840), (400, 70216), (524, 53600), (536, 52400), (640, 43885), (655, 42880), (670, 41920), (800, 35108), (1048, 26800), (1072, 26200), (1310, 21440), (1340, 20960), (1600, 17554), (1675, 16768), (2096, 13400), (2144, 13100), (2620, 10720), (2680, 10480), (3200, 8777), (3275, 8576), (3350, 8384), (4192, 6700), (4288, 6550), (5240, 5360)]