390000

素因数分解:

$2^4\times 3^1\times 5^4\times {\mathrm{13}}^1$

素因数の和:44

約数の個数: 100

約数和(自身を含む): 1355816

約数和(自身を除く): 965816

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 39, 40, 48, 50, 52, 60, 65, 75, 78, 80, 100, 104, 120, 125, 130, 150, 156, 195, 200, 208, 240, 250, 260, 300, 312, 325, 375, 390, 400, 500, 520, 600, 624, 625, 650, 750, 780, 975, 1000, 1040, 1200, 1250, 1300, 1500, 1560, 1625, 1875, 1950, 2000, 2500, 2600, 3000, 3120, 3250, 3750, 3900, 4875, 5000, 5200, 6000, 6500, 7500, 7800, 8125, 9750, 10000, 13000, 15000, 15600, 16250, 19500, 24375, 26000, 30000, 32500, 39000, 48750, 65000, 78000, 97500, 130000, 195000, 390000]

約数ペア:

[(1, 390000), (2, 195000), (3, 130000), (4, 97500), (5, 78000), (6, 65000), (8, 48750), (10, 39000), (12, 32500), (13, 30000), (15, 26000), (16, 24375), (20, 19500), (24, 16250), (25, 15600), (26, 15000), (30, 13000), (39, 10000), (40, 9750), (48, 8125), (50, 7800), (52, 7500), (60, 6500), (65, 6000), (75, 5200), (78, 5000), (80, 4875), (100, 3900), (104, 3750), (120, 3250), (125, 3120), (130, 3000), (150, 2600), (156, 2500), (195, 2000), (200, 1950), (208, 1875), (240, 1625), (250, 1560), (260, 1500), (300, 1300), (312, 1250), (325, 1200), (375, 1040), (390, 1000), (400, 975), (500, 780), (520, 750), (600, 650), (624, 625)]