2812400

素因数分解:

$2^4\times 5^2\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:186

約数の個数: 60

約数和(自身を含む): 6919200

約数和(自身を除く): 4106800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 79, 80, 89, 100, 158, 178, 200, 316, 356, 395, 400, 445, 632, 712, 790, 890, 1264, 1424, 1580, 1780, 1975, 2225, 3160, 3560, 3950, 4450, 6320, 7031, 7120, 7900, 8900, 14062, 15800, 17800, 28124, 31600, 35155, 35600, 56248, 70310, 112496, 140620, 175775, 281240, 351550, 562480, 703100, 1406200, 2812400]

約数ペア:

[(1, 2812400), (2, 1406200), (4, 703100), (5, 562480), (8, 351550), (10, 281240), (16, 175775), (20, 140620), (25, 112496), (40, 70310), (50, 56248), (79, 35600), (80, 35155), (89, 31600), (100, 28124), (158, 17800), (178, 15800), (200, 14062), (316, 8900), (356, 7900), (395, 7120), (400, 7031), (445, 6320), (632, 4450), (712, 3950), (790, 3560), (890, 3160), (1264, 2225), (1424, 1975), (1580, 1780)]