64477985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2909}}^1$

素因数の和:2969

約数の個数: 32

約数和(自身を含む): 93864960

約数和(自身を除く): 29386975

約数列:

[1, 5, 11, 13, 31, 55, 65, 143, 155, 341, 403, 715, 1705, 2015, 2909, 4433, 14545, 22165, 31999, 37817, 90179, 159995, 189085, 415987, 450895, 991969, 1172327, 2079935, 4959845, 5861635, 12895597, 64477985]

約数ペア:

[(1, 64477985), (5, 12895597), (11, 5861635), (13, 4959845), (31, 2079935), (55, 1172327), (65, 991969), (143, 450895), (155, 415987), (341, 189085), (403, 159995), (715, 90179), (1705, 37817), (2015, 31999), (2909, 22165), (4433, 14545)]