66778000

素因数分解:

$2^4\times 5^3\times {\mathrm{173}}^1\times {\mathrm{193}}^1$

素因数の和:389

約数の個数: 80

約数和(自身を含む): 163244016

約数和(自身を除く): 96466016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 173, 193, 200, 250, 346, 386, 400, 500, 692, 772, 865, 965, 1000, 1384, 1544, 1730, 1930, 2000, 2768, 3088, 3460, 3860, 4325, 4825, 6920, 7720, 8650, 9650, 13840, 15440, 17300, 19300, 21625, 24125, 33389, 34600, 38600, 43250, 48250, 66778, 69200, 77200, 86500, 96500, 133556, 166945, 173000, 193000, 267112, 333890, 346000, 386000, 534224, 667780, 834725, 1335560, 1669450, 2671120, 3338900, 4173625, 6677800, 8347250, 13355600, 16694500, 33389000, 66778000]

約数ペア:

[(1, 66778000), (2, 33389000), (4, 16694500), (5, 13355600), (8, 8347250), (10, 6677800), (16, 4173625), (20, 3338900), (25, 2671120), (40, 1669450), (50, 1335560), (80, 834725), (100, 667780), (125, 534224), (173, 386000), (193, 346000), (200, 333890), (250, 267112), (346, 193000), (386, 173000), (400, 166945), (500, 133556), (692, 96500), (772, 86500), (865, 77200), (965, 69200), (1000, 66778), (1384, 48250), (1544, 43250), (1730, 38600), (1930, 34600), (2000, 33389), (2768, 24125), (3088, 21625), (3460, 19300), (3860, 17300), (4325, 15440), (4825, 13840), (6920, 9650), (7720, 8650)]