64885725

素因数分解:

$3^3\times 5^2\times {\mathrm{97}}^1\times {\mathrm{991}}^1$

素因数の和:1107

約数の個数: 48

約数和(自身を含む): 120547840

約数和(自身を除く): 55662115

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 97, 135, 225, 291, 485, 675, 873, 991, 1455, 2425, 2619, 2973, 4365, 4955, 7275, 8919, 13095, 14865, 21825, 24775, 26757, 44595, 65475, 74325, 96127, 133785, 222975, 288381, 480635, 668925, 865143, 1441905, 2403175, 2595429, 4325715, 7209525, 12977145, 21628575, 64885725]

約数ペア:

[(1, 64885725), (3, 21628575), (5, 12977145), (9, 7209525), (15, 4325715), (25, 2595429), (27, 2403175), (45, 1441905), (75, 865143), (97, 668925), (135, 480635), (225, 288381), (291, 222975), (485, 133785), (675, 96127), (873, 74325), (991, 65475), (1455, 44595), (2425, 26757), (2619, 24775), (2973, 21825), (4365, 14865), (4955, 13095), (7275, 8919)]