20782752440

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1\times {\mathrm{27457}}^1$

素因数の和:27744

約数の個数: 64

約数和(自身を含む): 47447424000

約数和(自身を除く): 26664671560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 149, 254, 298, 508, 596, 635, 745, 1016, 1192, 1270, 1490, 2540, 2980, 5080, 5960, 18923, 27457, 37846, 54914, 75692, 94615, 109828, 137285, 151384, 189230, 219656, 274570, 378460, 549140, 756920, 1098280, 3487039, 4091093, 6974078, 8182186, 13948156, 16364372, 17435195, 20455465, 27896312, 32728744, 34870390, 40910930, 69740780, 81821860, 139481560, 163643720, 519568811, 1039137622, 2078275244, 2597844055, 4156550488, 5195688110, 10391376220, 20782752440]

約数ペア:

[(1, 20782752440), (2, 10391376220), (4, 5195688110), (5, 4156550488), (8, 2597844055), (10, 2078275244), (20, 1039137622), (40, 519568811), (127, 163643720), (149, 139481560), (254, 81821860), (298, 69740780), (508, 40910930), (596, 34870390), (635, 32728744), (745, 27896312), (1016, 20455465), (1192, 17435195), (1270, 16364372), (1490, 13948156), (2540, 8182186), (2980, 6974078), (5080, 4091093), (5960, 3487039), (18923, 1098280), (27457, 756920), (37846, 549140), (54914, 378460), (75692, 274570), (94615, 219656), (109828, 189230), (137285, 151384)]