428433775

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{20233}}^1$

素因数の和:20272

約数の個数: 36

約数和(自身を含む): 667398256

約数和(自身を除く): 238964481

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 121, 175, 275, 385, 605, 847, 1925, 3025, 4235, 20233, 21175, 101165, 141631, 222563, 505825, 708155, 1112815, 1557941, 2448193, 3540775, 5564075, 7789705, 12240965, 17137351, 38948525, 61204825, 85686755, 428433775]

約数ペア:

[(1, 428433775), (5, 85686755), (7, 61204825), (11, 38948525), (25, 17137351), (35, 12240965), (55, 7789705), (77, 5564075), (121, 3540775), (175, 2448193), (275, 1557941), (385, 1112815), (605, 708155), (847, 505825), (1925, 222563), (3025, 141631), (4235, 101165), (20233, 21175)]