1666016872

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{20201}}^1$

素因数の和:20294

約数の個数: 48

約数和(自身を含む): 3438178380

約数和(自身を除く): 1772161508

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 169, 244, 338, 488, 676, 793, 1352, 1586, 3172, 6344, 10309, 20201, 20618, 40402, 41236, 80804, 82472, 161608, 262613, 525226, 1050452, 1232261, 2100904, 2464522, 3413969, 4929044, 6827938, 9858088, 13655876, 16019393, 27311752, 32038786, 64077572, 128155144, 208252109, 416504218, 833008436, 1666016872]

約数ペア:

[(1, 1666016872), (2, 833008436), (4, 416504218), (8, 208252109), (13, 128155144), (26, 64077572), (52, 32038786), (61, 27311752), (104, 16019393), (122, 13655876), (169, 9858088), (244, 6827938), (338, 4929044), (488, 3413969), (676, 2464522), (793, 2100904), (1352, 1232261), (1586, 1050452), (3172, 525226), (6344, 262613), (10309, 161608), (20201, 82472), (20618, 80804), (40402, 41236)]