18766996976

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{274243}}^1$

素因数の和:274318

約数の個数: 80

約数和(自身を含む): 45704408064

約数和(自身を除く): 26937411088

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 47, 52, 56, 91, 94, 104, 112, 182, 188, 208, 329, 364, 376, 611, 658, 728, 752, 1222, 1316, 1456, 2444, 2632, 4277, 4888, 5264, 8554, 9776, 17108, 34216, 68432, 274243, 548486, 1096972, 1919701, 2193944, 3565159, 3839402, 4387888, 7130318, 7678804, 12889421, 14260636, 15357608, 24956113, 25778842, 28521272, 30715216, 49912226, 51557684, 57042544, 90225947, 99824452, 103115368, 167562473, 180451894, 199648904, 206230736, 335124946, 360903788, 399297808, 670249892, 721807576, 1172937311, 1340499784, 1443615152, 2345874622, 2680999568, 4691749244, 9383498488, 18766996976]

約数ペア:

[(1, 18766996976), (2, 9383498488), (4, 4691749244), (7, 2680999568), (8, 2345874622), (13, 1443615152), (14, 1340499784), (16, 1172937311), (26, 721807576), (28, 670249892), (47, 399297808), (52, 360903788), (56, 335124946), (91, 206230736), (94, 199648904), (104, 180451894), (112, 167562473), (182, 103115368), (188, 99824452), (208, 90225947), (329, 57042544), (364, 51557684), (376, 49912226), (611, 30715216), (658, 28521272), (728, 25778842), (752, 24956113), (1222, 15357608), (1316, 14260636), (1456, 12889421), (2444, 7678804), (2632, 7130318), (4277, 4387888), (4888, 3839402), (5264, 3565159), (8554, 2193944), (9776, 1919701), (17108, 1096972), (34216, 548486), (68432, 274243)]