209991000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{69997}}^1$

素因数の和:70021

約数の個数: 64

約数和(自身を含む): 655181280

約数和(自身を除く): 445190280

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, 69997, 139994, 209991, 279988, 349985, 419982, 559976, 699970, 839964, 1049955, 1399940, 1679928, 1749925, 2099910, 2799880, 3499850, 4199820, 5249775, 6999700, 8399640, 8749625, 10499550, 13999400, 17499250, 20999100, 26248875, 34998500, 41998200, 52497750, 69997000, 104995500, 209991000]

約数ペア:

[(1, 209991000), (2, 104995500), (3, 69997000), (4, 52497750), (5, 41998200), (6, 34998500), (8, 26248875), (10, 20999100), (12, 17499250), (15, 13999400), (20, 10499550), (24, 8749625), (25, 8399640), (30, 6999700), (40, 5249775), (50, 4199820), (60, 3499850), (75, 2799880), (100, 2099910), (120, 1749925), (125, 1679928), (150, 1399940), (200, 1049955), (250, 839964), (300, 699970), (375, 559976), (500, 419982), (600, 349985), (750, 279988), (1000, 209991), (1500, 139994), (3000, 69997)]