1657477840

素因数分解:

$2^4\times 5^1\times {\mathrm{1973}}^1\times {\mathrm{10501}}^1$

素因数の和:12487

約数の個数: 40

約数和(自身を含む): 3855956328

約数和(自身を除く): 2198478488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1973, 3946, 7892, 9865, 10501, 15784, 19730, 21002, 31568, 39460, 42004, 52505, 78920, 84008, 105010, 157840, 168016, 210020, 420040, 840080, 20718473, 41436946, 82873892, 103592365, 165747784, 207184730, 331495568, 414369460, 828738920, 1657477840]

約数ペア:

[(1, 1657477840), (2, 828738920), (4, 414369460), (5, 331495568), (8, 207184730), (10, 165747784), (16, 103592365), (20, 82873892), (40, 41436946), (80, 20718473), (1973, 840080), (3946, 420040), (7892, 210020), (9865, 168016), (10501, 157840), (15784, 105010), (19730, 84008), (21002, 78920), (31568, 52505), (39460, 42004)]