991899756

素因数分解:

$2^2\times 3^5\times {\mathrm{331}}^1\times {\mathrm{3083}}^1$

素因数の和:3433

約数の個数: 72

約数和(自身を含む): 2608866624

約数和(自身を除く): 1616966868

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 331, 486, 662, 972, 993, 1324, 1986, 2979, 3083, 3972, 5958, 6166, 8937, 9249, 11916, 12332, 17874, 18498, 26811, 27747, 35748, 36996, 53622, 55494, 80433, 83241, 107244, 110988, 160866, 166482, 249723, 321732, 332964, 499446, 749169, 998892, 1020473, 1498338, 2040946, 2996676, 3061419, 4081892, 6122838, 9184257, 12245676, 18368514, 27552771, 36737028, 55105542, 82658313, 110211084, 165316626, 247974939, 330633252, 495949878, 991899756]

約数ペア:

[(1, 991899756), (2, 495949878), (3, 330633252), (4, 247974939), (6, 165316626), (9, 110211084), (12, 82658313), (18, 55105542), (27, 36737028), (36, 27552771), (54, 18368514), (81, 12245676), (108, 9184257), (162, 6122838), (243, 4081892), (324, 3061419), (331, 2996676), (486, 2040946), (662, 1498338), (972, 1020473), (993, 998892), (1324, 749169), (1986, 499446), (2979, 332964), (3083, 321732), (3972, 249723), (5958, 166482), (6166, 160866), (8937, 110988), (9249, 107244), (11916, 83241), (12332, 80433), (17874, 55494), (18498, 53622), (26811, 36996), (27747, 35748)]