2017189520

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{355139}}^1$

素因数の和:355223

約数の個数: 40

約数和(自身を含む): 4756034880

約数和(自身を除く): 2738845360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 355139, 710278, 1420556, 1775695, 2841112, 3551390, 5682224, 7102780, 14205560, 25214869, 28411120, 50429738, 100859476, 126074345, 201718952, 252148690, 403437904, 504297380, 1008594760, 2017189520]

約数ペア:

[(1, 2017189520), (2, 1008594760), (4, 504297380), (5, 403437904), (8, 252148690), (10, 201718952), (16, 126074345), (20, 100859476), (40, 50429738), (71, 28411120), (80, 25214869), (142, 14205560), (284, 7102780), (355, 5682224), (568, 3551390), (710, 2841112), (1136, 1775695), (1420, 1420556), (2840, 710278), (5680, 355139)]