20967648

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{317}}^1$

素因数の和:396

約数の個数: 96

約数和(自身を含む): 60582816

約数和(自身を除く): 39615168

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 53, 78, 96, 104, 106, 156, 159, 208, 212, 312, 317, 318, 416, 424, 624, 634, 636, 689, 848, 951, 1248, 1268, 1272, 1378, 1696, 1902, 2067, 2536, 2544, 2756, 3804, 4121, 4134, 5072, 5088, 5512, 7608, 8242, 8268, 10144, 11024, 12363, 15216, 16484, 16536, 16801, 22048, 24726, 30432, 32968, 33072, 33602, 49452, 50403, 65936, 66144, 67204, 98904, 100806, 131872, 134408, 197808, 201612, 218413, 268816, 395616, 403224, 436826, 537632, 655239, 806448, 873652, 1310478, 1612896, 1747304, 2620956, 3494608, 5241912, 6989216, 10483824, 20967648]

約数ペア:

[(1, 20967648), (2, 10483824), (3, 6989216), (4, 5241912), (6, 3494608), (8, 2620956), (12, 1747304), (13, 1612896), (16, 1310478), (24, 873652), (26, 806448), (32, 655239), (39, 537632), (48, 436826), (52, 403224), (53, 395616), (78, 268816), (96, 218413), (104, 201612), (106, 197808), (156, 134408), (159, 131872), (208, 100806), (212, 98904), (312, 67204), (317, 66144), (318, 65936), (416, 50403), (424, 49452), (624, 33602), (634, 33072), (636, 32968), (689, 30432), (848, 24726), (951, 22048), (1248, 16801), (1268, 16536), (1272, 16484), (1378, 15216), (1696, 12363), (1902, 11024), (2067, 10144), (2536, 8268), (2544, 8242), (2756, 7608), (3804, 5512), (4121, 5088), (4134, 5072)]