20422675

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 31997952

約数和(自身を除く): 11575277

約数列:

[1, 5, 7, 13, 25, 35, 47, 65, 91, 175, 191, 235, 325, 329, 455, 611, 955, 1175, 1337, 1645, 2275, 2483, 3055, 4277, 4775, 6685, 8225, 8977, 12415, 15275, 17381, 21385, 33425, 44885, 62075, 62839, 86905, 106925, 116701, 224425, 314195, 434525, 583505, 816907, 1570975, 2917525, 4084535, 20422675]

約数ペア:

[(1, 20422675), (5, 4084535), (7, 2917525), (13, 1570975), (25, 816907), (35, 583505), (47, 434525), (65, 314195), (91, 224425), (175, 116701), (191, 106925), (235, 86905), (325, 62839), (329, 62075), (455, 44885), (611, 33425), (955, 21385), (1175, 17381), (1337, 15275), (1645, 12415), (2275, 8977), (2483, 8225), (3055, 6685), (4277, 4775)]