209419280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{373963}}^1$

素因数の和:373983

約数の個数: 40

約数和(自身を含む): 556458432

約数和(自身を除く): 347039152

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 373963, 747926, 1495852, 1869815, 2617741, 2991704, 3739630, 5235482, 5983408, 7479260, 10470964, 13088705, 14958520, 20941928, 26177410, 29917040, 41883856, 52354820, 104709640, 209419280]

約数ペア:

[(1, 209419280), (2, 104709640), (4, 52354820), (5, 41883856), (7, 29917040), (8, 26177410), (10, 20941928), (14, 14958520), (16, 13088705), (20, 10470964), (28, 7479260), (35, 5983408), (40, 5235482), (56, 3739630), (70, 2991704), (80, 2617741), (112, 1869815), (140, 1495852), (280, 747926), (560, 373963)]