20544047360

素因数分解:

$2^8\times 5^1\times {\mathrm{1583}}^1\times {\mathrm{10139}}^1$

素因数の和:11743

約数の個数: 72

約数和(自身を含む): 49245356160

約数和(自身を除く): 28701308800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 1583, 3166, 6332, 7915, 10139, 12664, 15830, 20278, 25328, 31660, 40556, 50656, 50695, 63320, 81112, 101312, 101390, 126640, 162224, 202624, 202780, 253280, 324448, 405248, 405560, 506560, 648896, 811120, 1013120, 1297792, 1622240, 2026240, 2595584, 3244480, 6488960, 12977920, 16050037, 32100074, 64200148, 80250185, 128400296, 160500370, 256800592, 321000740, 513601184, 642001480, 1027202368, 1284002960, 2054404736, 2568005920, 4108809472, 5136011840, 10272023680, 20544047360]

約数ペア:

[(1, 20544047360), (2, 10272023680), (4, 5136011840), (5, 4108809472), (8, 2568005920), (10, 2054404736), (16, 1284002960), (20, 1027202368), (32, 642001480), (40, 513601184), (64, 321000740), (80, 256800592), (128, 160500370), (160, 128400296), (256, 80250185), (320, 64200148), (640, 32100074), (1280, 16050037), (1583, 12977920), (3166, 6488960), (6332, 3244480), (7915, 2595584), (10139, 2026240), (12664, 1622240), (15830, 1297792), (20278, 1013120), (25328, 811120), (31660, 648896), (40556, 506560), (50656, 405560), (50695, 405248), (63320, 324448), (81112, 253280), (101312, 202780), (101390, 202624), (126640, 162224)]