20834240

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:226

約数の個数: 112

約数和(自身を含む): 57936384

約数和(自身を除く): 37102144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 80, 112, 131, 140, 142, 160, 224, 262, 280, 284, 320, 355, 448, 497, 524, 560, 568, 655, 710, 917, 994, 1048, 1120, 1136, 1310, 1420, 1834, 1988, 2096, 2240, 2272, 2485, 2620, 2840, 3668, 3976, 4192, 4544, 4585, 4970, 5240, 5680, 7336, 7952, 8384, 9170, 9301, 9940, 10480, 11360, 14672, 15904, 18340, 18602, 19880, 20960, 22720, 29344, 31808, 36680, 37204, 39760, 41920, 46505, 58688, 65107, 73360, 74408, 79520, 93010, 130214, 146720, 148816, 159040, 186020, 260428, 293440, 297632, 325535, 372040, 520856, 595264, 651070, 744080, 1041712, 1302140, 1488160, 2083424, 2604280, 2976320, 4166848, 5208560, 10417120, 20834240]

約数ペア:

[(1, 20834240), (2, 10417120), (4, 5208560), (5, 4166848), (7, 2976320), (8, 2604280), (10, 2083424), (14, 1488160), (16, 1302140), (20, 1041712), (28, 744080), (32, 651070), (35, 595264), (40, 520856), (56, 372040), (64, 325535), (70, 297632), (71, 293440), (80, 260428), (112, 186020), (131, 159040), (140, 148816), (142, 146720), (160, 130214), (224, 93010), (262, 79520), (280, 74408), (284, 73360), (320, 65107), (355, 58688), (448, 46505), (497, 41920), (524, 39760), (560, 37204), (568, 36680), (655, 31808), (710, 29344), (917, 22720), (994, 20960), (1048, 19880), (1120, 18602), (1136, 18340), (1310, 15904), (1420, 14672), (1834, 11360), (1988, 10480), (2096, 9940), (2240, 9301), (2272, 9170), (2485, 8384), (2620, 7952), (2840, 7336), (3668, 5680), (3976, 5240), (4192, 4970), (4544, 4585)]