28157984

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{271}}^1$

素因数の和:489

約数の個数: 48

約数和(自身を含む): 59222016

約数和(自身を除く): 31064032

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 191, 271, 272, 382, 542, 544, 764, 1084, 1528, 2168, 3056, 3247, 4336, 4607, 6112, 6494, 8672, 9214, 12988, 18428, 25976, 36856, 51761, 51952, 73712, 103522, 103904, 147424, 207044, 414088, 828176, 879937, 1656352, 1759874, 3519748, 7039496, 14078992, 28157984]

約数ペア:

[(1, 28157984), (2, 14078992), (4, 7039496), (8, 3519748), (16, 1759874), (17, 1656352), (32, 879937), (34, 828176), (68, 414088), (136, 207044), (191, 147424), (271, 103904), (272, 103522), (382, 73712), (542, 51952), (544, 51761), (764, 36856), (1084, 25976), (1528, 18428), (2168, 12988), (3056, 9214), (3247, 8672), (4336, 6494), (4607, 6112)]