20175279995

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{1523}}^1$

素因数の和:1872

約数の個数: 48

約数和(自身を含む): 26766938592

約数和(自身を除く): 6591658597

約数列:

[1, 5, 13, 61, 65, 169, 257, 305, 793, 845, 1285, 1523, 3341, 3965, 7615, 10309, 15677, 16705, 19799, 43433, 51545, 78385, 92903, 98995, 203801, 217165, 257387, 391411, 464515, 1019005, 1207739, 1286935, 1957055, 2649413, 5088343, 6038695, 13247065, 15700607, 23876071, 25441715, 66148459, 78503035, 119380355, 310388923, 330742295, 1551944615, 4035055999, 20175279995]

約数ペア:

[(1, 20175279995), (5, 4035055999), (13, 1551944615), (61, 330742295), (65, 310388923), (169, 119380355), (257, 78503035), (305, 66148459), (793, 25441715), (845, 23876071), (1285, 15700607), (1523, 13247065), (3341, 6038695), (3965, 5088343), (7615, 2649413), (10309, 1957055), (15677, 1286935), (16705, 1207739), (19799, 1019005), (43433, 464515), (51545, 391411), (78385, 257387), (92903, 217165), (98995, 203801)]