19500

素因数分解:

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

素因数の和:35

約数の個数: 48

約数和(自身を含む): 61152

約数和(自身を除く): 41652

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, 125, 130, 150, 156, 195, 250, 260, 300, 325, 375, 390, 500, 650, 750, 780, 975, 1300, 1500, 1625, 1950, 3250, 3900, 4875, 6500, 9750, 19500]

約数ペア:

[(1, 19500), (2, 9750), (3, 6500), (4, 4875), (5, 3900), (6, 3250), (10, 1950), (12, 1625), (13, 1500), (15, 1300), (20, 975), (25, 780), (26, 750), (30, 650), (39, 500), (50, 390), (52, 375), (60, 325), (65, 300), (75, 260), (78, 250), (100, 195), (125, 156), (130, 150)]