78800780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{1021}}^1$

素因数の和:1274

約数の個数: 48

約数和(自身を含む): 176160096

約数和(自身を除く): 97359316

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 227, 340, 454, 908, 1021, 1135, 2042, 2270, 3859, 4084, 4540, 5105, 7718, 10210, 15436, 17357, 19295, 20420, 34714, 38590, 69428, 77180, 86785, 173570, 231767, 347140, 463534, 927068, 1158835, 2317670, 3940039, 4635340, 7880078, 15760156, 19700195, 39400390, 78800780]

約数ペア:

[(1, 78800780), (2, 39400390), (4, 19700195), (5, 15760156), (10, 7880078), (17, 4635340), (20, 3940039), (34, 2317670), (68, 1158835), (85, 927068), (170, 463534), (227, 347140), (340, 231767), (454, 173570), (908, 86785), (1021, 77180), (1135, 69428), (2042, 38590), (2270, 34714), (3859, 20420), (4084, 19295), (4540, 17357), (5105, 15436), (7718, 10210)]