209545840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{374189}}^1$

素因数の和:374209

約数の個数: 40

約数和(自身を含む): 556794720

約数和(自身を除く): 347248880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 374189, 748378, 1496756, 1870945, 2619323, 2993512, 3741890, 5238646, 5987024, 7483780, 10477292, 13096615, 14967560, 20954584, 26193230, 29935120, 41909168, 52386460, 104772920, 209545840]

約数ペア:

[(1, 209545840), (2, 104772920), (4, 52386460), (5, 41909168), (7, 29935120), (8, 26193230), (10, 20954584), (14, 14967560), (16, 13096615), (20, 10477292), (28, 7483780), (35, 5987024), (40, 5238646), (56, 3741890), (70, 2993512), (80, 2619323), (112, 1870945), (140, 1496756), (280, 748378), (560, 374189)]