1290000

素因数分解:

$2^4\times 3^1\times 5^4\times {\mathrm{43}}^1$

素因数の和:74

約数の個数: 100

約数和(自身を含む): 4261136

約数和(自身を除く): 2971136

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 43, 48, 50, 60, 75, 80, 86, 100, 120, 125, 129, 150, 172, 200, 215, 240, 250, 258, 300, 344, 375, 400, 430, 500, 516, 600, 625, 645, 688, 750, 860, 1000, 1032, 1075, 1200, 1250, 1290, 1500, 1720, 1875, 2000, 2064, 2150, 2500, 2580, 3000, 3225, 3440, 3750, 4300, 5000, 5160, 5375, 6000, 6450, 7500, 8600, 10000, 10320, 10750, 12900, 15000, 16125, 17200, 21500, 25800, 26875, 30000, 32250, 43000, 51600, 53750, 64500, 80625, 86000, 107500, 129000, 161250, 215000, 258000, 322500, 430000, 645000, 1290000]

約数ペア:

[(1, 1290000), (2, 645000), (3, 430000), (4, 322500), (5, 258000), (6, 215000), (8, 161250), (10, 129000), (12, 107500), (15, 86000), (16, 80625), (20, 64500), (24, 53750), (25, 51600), (30, 43000), (40, 32250), (43, 30000), (48, 26875), (50, 25800), (60, 21500), (75, 17200), (80, 16125), (86, 15000), (100, 12900), (120, 10750), (125, 10320), (129, 10000), (150, 8600), (172, 7500), (200, 6450), (215, 6000), (240, 5375), (250, 5160), (258, 5000), (300, 4300), (344, 3750), (375, 3440), (400, 3225), (430, 3000), (500, 2580), (516, 2500), (600, 2150), (625, 2064), (645, 2000), (688, 1875), (750, 1720), (860, 1500), (1000, 1290), (1032, 1250), (1075, 1200)]