65991000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{21997}}^1$

素因数の和:22021

約数の個数: 64

約数和(自身を含む): 205901280

約数和(自身を除く): 139910280

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, 21997, 43994, 65991, 87988, 109985, 131982, 175976, 219970, 263964, 329955, 439940, 527928, 549925, 659910, 879880, 1099850, 1319820, 1649775, 2199700, 2639640, 2749625, 3299550, 4399400, 5499250, 6599100, 8248875, 10998500, 13198200, 16497750, 21997000, 32995500, 65991000]

約数ペア:

[(1, 65991000), (2, 32995500), (3, 21997000), (4, 16497750), (5, 13198200), (6, 10998500), (8, 8248875), (10, 6599100), (12, 5499250), (15, 4399400), (20, 3299550), (24, 2749625), (25, 2639640), (30, 2199700), (40, 1649775), (50, 1319820), (60, 1099850), (75, 879880), (100, 659910), (120, 549925), (125, 527928), (150, 439940), (200, 329955), (250, 263964), (300, 219970), (375, 175976), (500, 131982), (600, 109985), (750, 87988), (1000, 65991), (1500, 43994), (3000, 21997)]