12778240

素因数分解:

$2^8\times 5^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:237

約数の個数: 72

約数和(自身を含む): 31273200

約数和(自身を除く): 18494960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 149, 160, 256, 268, 298, 320, 335, 536, 596, 640, 670, 745, 1072, 1192, 1280, 1340, 1490, 2144, 2384, 2680, 2980, 4288, 4768, 5360, 5960, 8576, 9536, 9983, 10720, 11920, 17152, 19072, 19966, 21440, 23840, 38144, 39932, 42880, 47680, 49915, 79864, 85760, 95360, 99830, 159728, 190720, 199660, 319456, 399320, 638912, 798640, 1277824, 1597280, 2555648, 3194560, 6389120, 12778240]

約数ペア:

[(1, 12778240), (2, 6389120), (4, 3194560), (5, 2555648), (8, 1597280), (10, 1277824), (16, 798640), (20, 638912), (32, 399320), (40, 319456), (64, 199660), (67, 190720), (80, 159728), (128, 99830), (134, 95360), (149, 85760), (160, 79864), (256, 49915), (268, 47680), (298, 42880), (320, 39932), (335, 38144), (536, 23840), (596, 21440), (640, 19966), (670, 19072), (745, 17152), (1072, 11920), (1192, 10720), (1280, 9983), (1340, 9536), (1490, 8576), (2144, 5960), (2384, 5360), (2680, 4768), (2980, 4288)]