20931000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{6977}}^1$

素因数の和:7001

約数の個数: 64

約数和(自身を含む): 65314080

約数和(自身を除く): 44383080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 150, 200, 250, 300, 375, 500, 600, 750, 1000, 1500, 3000, 6977, 13954, 20931, 27908, 34885, 41862, 55816, 69770, 83724, 104655, 139540, 167448, 174425, 209310, 279080, 348850, 418620, 523275, 697700, 837240, 872125, 1046550, 1395400, 1744250, 2093100, 2616375, 3488500, 4186200, 5232750, 6977000, 10465500, 20931000]

約数ペア:

[(1, 20931000), (2, 10465500), (3, 6977000), (4, 5232750), (5, 4186200), (6, 3488500), (8, 2616375), (10, 2093100), (12, 1744250), (15, 1395400), (20, 1046550), (24, 872125), (25, 837240), (30, 697700), (40, 523275), (50, 418620), (60, 348850), (75, 279080), (100, 209310), (120, 174425), (125, 167448), (150, 139540), (200, 104655), (250, 83724), (300, 69770), (375, 55816), (500, 41862), (600, 34885), (750, 27908), (1000, 20931), (1500, 13954), (3000, 6977)]