390005825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{313}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 555071616

約数和(自身を除く): 165065791

約数列:

[1, 5, 11, 23, 25, 55, 115, 197, 253, 275, 313, 575, 985, 1265, 1565, 2167, 3443, 4531, 4925, 6325, 7199, 7825, 10835, 17215, 22655, 35995, 49841, 54175, 61661, 79189, 86075, 113275, 179975, 249205, 308305, 395945, 678271, 1246025, 1418203, 1541525, 1979725, 3391355, 7091015, 15600233, 16956775, 35455075, 78001165, 390005825]

約数ペア:

[(1, 390005825), (5, 78001165), (11, 35455075), (23, 16956775), (25, 15600233), (55, 7091015), (115, 3391355), (197, 1979725), (253, 1541525), (275, 1418203), (313, 1246025), (575, 678271), (985, 395945), (1265, 308305), (1565, 249205), (2167, 179975), (3443, 113275), (4531, 86075), (4925, 79189), (6325, 61661), (7199, 54175), (7825, 49841), (10835, 35995), (17215, 22655)]