20403208

素因数分解:

$2^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:147

約数の個数: 96

約数和(自身を含む): 48591360

約数和(自身を除く): 28188152

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 31, 46, 49, 56, 62, 73, 92, 98, 124, 146, 161, 184, 196, 217, 248, 292, 322, 392, 434, 511, 584, 644, 713, 868, 1022, 1127, 1288, 1426, 1519, 1679, 1736, 2044, 2254, 2263, 2852, 3038, 3358, 3577, 4088, 4508, 4526, 4991, 5704, 6076, 6716, 7154, 9016, 9052, 9982, 11753, 12152, 13432, 14308, 15841, 18104, 19964, 23506, 28616, 31682, 34937, 39928, 47012, 52049, 63364, 69874, 82271, 94024, 104098, 110887, 126728, 139748, 164542, 208196, 221774, 279496, 329084, 364343, 416392, 443548, 658168, 728686, 887096, 1457372, 2550401, 2914744, 5100802, 10201604, 20403208]

約数ペア:

[(1, 20403208), (2, 10201604), (4, 5100802), (7, 2914744), (8, 2550401), (14, 1457372), (23, 887096), (28, 728686), (31, 658168), (46, 443548), (49, 416392), (56, 364343), (62, 329084), (73, 279496), (92, 221774), (98, 208196), (124, 164542), (146, 139748), (161, 126728), (184, 110887), (196, 104098), (217, 94024), (248, 82271), (292, 69874), (322, 63364), (392, 52049), (434, 47012), (511, 39928), (584, 34937), (644, 31682), (713, 28616), (868, 23506), (1022, 19964), (1127, 18104), (1288, 15841), (1426, 14308), (1519, 13432), (1679, 12152), (1736, 11753), (2044, 9982), (2254, 9052), (2263, 9016), (2852, 7154), (3038, 6716), (3358, 6076), (3577, 5704), (4088, 4991), (4508, 4526)]