1915690760

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{631}}^1\times {\mathrm{1069}}^1$

素因数の和:1782

約数の個数: 64

約数和(自身を含む): 4382035200

約数和(自身を除く): 2466344440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 631, 710, 1069, 1262, 1420, 2138, 2524, 2840, 3155, 4276, 5048, 5345, 6310, 8552, 10690, 12620, 21380, 25240, 42760, 44801, 75899, 89602, 151798, 179204, 224005, 303596, 358408, 379495, 448010, 607192, 674539, 758990, 896020, 1349078, 1517980, 1792040, 2698156, 3035960, 3372695, 5396312, 6745390, 13490780, 26981560, 47892269, 95784538, 191569076, 239461345, 383138152, 478922690, 957845380, 1915690760]

約数ペア:

[(1, 1915690760), (2, 957845380), (4, 478922690), (5, 383138152), (8, 239461345), (10, 191569076), (20, 95784538), (40, 47892269), (71, 26981560), (142, 13490780), (284, 6745390), (355, 5396312), (568, 3372695), (631, 3035960), (710, 2698156), (1069, 1792040), (1262, 1517980), (1420, 1349078), (2138, 896020), (2524, 758990), (2840, 674539), (3155, 607192), (4276, 448010), (5048, 379495), (5345, 358408), (6310, 303596), (8552, 224005), (10690, 179204), (12620, 151798), (21380, 89602), (25240, 75899), (42760, 44801)]