7997860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1619}}^1$

素因数の和:1660

約数の個数: 48

約数和(自身を含む): 19051200

約数和(自身を除く): 11053340

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 1619, 2470, 3238, 4940, 6476, 8095, 16190, 21047, 30761, 32380, 42094, 61522, 84188, 105235, 123044, 153805, 210470, 307610, 399893, 420940, 615220, 799786, 1599572, 1999465, 3998930, 7997860]

約数ペア:

[(1, 7997860), (2, 3998930), (4, 1999465), (5, 1599572), (10, 799786), (13, 615220), (19, 420940), (20, 399893), (26, 307610), (38, 210470), (52, 153805), (65, 123044), (76, 105235), (95, 84188), (130, 61522), (190, 42094), (247, 32380), (260, 30761), (380, 21047), (494, 16190), (988, 8095), (1235, 6476), (1619, 4940), (2470, 3238)]