128345840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{229189}}^1$

素因数の和:229209

約数の個数: 40

約数和(自身を含む): 341034720

約数和(自身を除く): 212688880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 229189, 458378, 916756, 1145945, 1604323, 1833512, 2291890, 3208646, 3667024, 4583780, 6417292, 8021615, 9167560, 12834584, 16043230, 18335120, 25669168, 32086460, 64172920, 128345840]

約数ペア:

[(1, 128345840), (2, 64172920), (4, 32086460), (5, 25669168), (7, 18335120), (8, 16043230), (10, 12834584), (14, 9167560), (16, 8021615), (20, 6417292), (28, 4583780), (35, 3667024), (40, 3208646), (56, 2291890), (70, 1833512), (80, 1604323), (112, 1145945), (140, 916756), (280, 458378), (560, 229189)]