189858988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{839}}^1$

素因数の和:1030

約数の個数: 48

約数和(自身を含む): 375379200

約数和(自身を除く): 185520212

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 139, 148, 278, 407, 556, 814, 839, 1529, 1628, 1678, 3058, 3356, 5143, 6116, 9229, 10286, 18458, 20572, 31043, 36916, 56573, 62086, 113146, 116621, 124172, 226292, 233242, 341473, 466484, 682946, 1282831, 1365892, 2565662, 4314977, 5131324, 8629954, 17259908, 47464747, 94929494, 189858988]

約数ペア:

[(1, 189858988), (2, 94929494), (4, 47464747), (11, 17259908), (22, 8629954), (37, 5131324), (44, 4314977), (74, 2565662), (139, 1365892), (148, 1282831), (278, 682946), (407, 466484), (556, 341473), (814, 233242), (839, 226292), (1529, 124172), (1628, 116621), (1678, 113146), (3058, 62086), (3356, 56573), (5143, 36916), (6116, 31043), (9229, 20572), (10286, 18458)]