20803575

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1123}}^1$

素因数の和:1168

約数の個数: 48

約数和(自身を含む): 39025280

約数和(自身を除く): 18221705

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 195, 247, 285, 325, 475, 741, 975, 1123, 1235, 1425, 3369, 3705, 5615, 6175, 14599, 16845, 18525, 21337, 28075, 43797, 64011, 72995, 84225, 106685, 218985, 277381, 320055, 364975, 533425, 832143, 1094925, 1386905, 1600275, 4160715, 6934525, 20803575]

約数ペア:

[(1, 20803575), (3, 6934525), (5, 4160715), (13, 1600275), (15, 1386905), (19, 1094925), (25, 832143), (39, 533425), (57, 364975), (65, 320055), (75, 277381), (95, 218985), (195, 106685), (247, 84225), (285, 72995), (325, 64011), (475, 43797), (741, 28075), (975, 21337), (1123, 18525), (1235, 16845), (1425, 14599), (3369, 6175), (3705, 5615)]