66871792

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16921}}^1$

素因数の和:16961

約数の個数: 40

約数和(自身を含む): 146882960

約数和(自身を除く): 80011168

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 16921, 33842, 67684, 135368, 219973, 270736, 321499, 439946, 642998, 879892, 1285996, 1759784, 2571992, 3519568, 4179487, 5143984, 8358974, 16717948, 33435896, 66871792]

約数ペア:

[(1, 66871792), (2, 33435896), (4, 16717948), (8, 8358974), (13, 5143984), (16, 4179487), (19, 3519568), (26, 2571992), (38, 1759784), (52, 1285996), (76, 879892), (104, 642998), (152, 439946), (208, 321499), (247, 270736), (304, 219973), (494, 135368), (988, 67684), (1976, 33842), (3952, 16921)]