7031000

素因数分解:

$2^3\times 5^3\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:189

約数の個数: 64

約数和(自身を含む): 16848000

約数和(自身を除く): 9817000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 89, 100, 125, 158, 178, 200, 250, 316, 356, 395, 445, 500, 632, 712, 790, 890, 1000, 1580, 1780, 1975, 2225, 3160, 3560, 3950, 4450, 7031, 7900, 8900, 9875, 11125, 14062, 15800, 17800, 19750, 22250, 28124, 35155, 39500, 44500, 56248, 70310, 79000, 89000, 140620, 175775, 281240, 351550, 703100, 878875, 1406200, 1757750, 3515500, 7031000]

約数ペア:

[(1, 7031000), (2, 3515500), (4, 1757750), (5, 1406200), (8, 878875), (10, 703100), (20, 351550), (25, 281240), (40, 175775), (50, 140620), (79, 89000), (89, 79000), (100, 70310), (125, 56248), (158, 44500), (178, 39500), (200, 35155), (250, 28124), (316, 22250), (356, 19750), (395, 17800), (445, 15800), (500, 14062), (632, 11125), (712, 9875), (790, 8900), (890, 7900), (1000, 7031), (1580, 4450), (1780, 3950), (1975, 3560), (2225, 3160)]