20736694544

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{206081}}^1$

素因数の和:206439

約数の個数: 40

約数和(自身を含む): 42419918880

約数和(自身を除く): 21683224336

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 331, 662, 1324, 2648, 5296, 6289, 12578, 25156, 50312, 100624, 206081, 412162, 824324, 1648648, 3297296, 3915539, 7831078, 15662156, 31324312, 62648624, 68212811, 136425622, 272851244, 545702488, 1091404976, 1296043409, 2592086818, 5184173636, 10368347272, 20736694544]

約数ペア:

[(1, 20736694544), (2, 10368347272), (4, 5184173636), (8, 2592086818), (16, 1296043409), (19, 1091404976), (38, 545702488), (76, 272851244), (152, 136425622), (304, 68212811), (331, 62648624), (662, 31324312), (1324, 15662156), (2648, 7831078), (5296, 3915539), (6289, 3297296), (12578, 1648648), (25156, 824324), (50312, 412162), (100624, 206081)]