7800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{13}}^1$

素因数の和:32

約数の個数: 48

約数和(自身を含む): 26040

約数和(自身を除く): 18240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 39, 40, 50, 52, 60, 65, 75, 78, 100, 104, 120, 130, 150, 156, 195, 200, 260, 300, 312, 325, 390, 520, 600, 650, 780, 975, 1300, 1560, 1950, 2600, 3900, 7800]

約数ペア:

[(1, 7800), (2, 3900), (3, 2600), (4, 1950), (5, 1560), (6, 1300), (8, 975), (10, 780), (12, 650), (13, 600), (15, 520), (20, 390), (24, 325), (25, 312), (26, 300), (30, 260), (39, 200), (40, 195), (50, 156), (52, 150), (60, 130), (65, 120), (75, 104), (78, 100)]