28047705

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{827}}^1$

素因数の和:878

約数の個数: 64

約数和(自身を含む): 57231360

約数和(自身を除く): 29183655

約数列:

[1, 3, 5, 7, 15, 17, 19, 21, 35, 51, 57, 85, 95, 105, 119, 133, 255, 285, 323, 357, 399, 595, 665, 827, 969, 1615, 1785, 1995, 2261, 2481, 4135, 4845, 5789, 6783, 11305, 12405, 14059, 15713, 17367, 28945, 33915, 42177, 47139, 70295, 78565, 86835, 98413, 109991, 210885, 235695, 267121, 295239, 329973, 492065, 549955, 801363, 1335605, 1476195, 1649865, 1869847, 4006815, 5609541, 9349235, 28047705]

約数ペア:

[(1, 28047705), (3, 9349235), (5, 5609541), (7, 4006815), (15, 1869847), (17, 1649865), (19, 1476195), (21, 1335605), (35, 801363), (51, 549955), (57, 492065), (85, 329973), (95, 295239), (105, 267121), (119, 235695), (133, 210885), (255, 109991), (285, 98413), (323, 86835), (357, 78565), (399, 70295), (595, 47139), (665, 42177), (827, 33915), (969, 28945), (1615, 17367), (1785, 15713), (1995, 14059), (2261, 12405), (2481, 11305), (4135, 6783), (4845, 5789)]