3900

素因数分解:

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

素因数の和:30

約数の個数: 36

約数和(自身を含む): 12152

約数和(自身を除く): 8252

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900]

約数ペア:

[(1, 3900), (2, 1950), (3, 1300), (4, 975), (5, 780), (6, 650), (10, 390), (12, 325), (13, 300), (15, 260), (20, 195), (25, 156), (26, 150), (30, 130), (39, 100), (50, 78), (52, 75), (60, 65)]