309900710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{22247}}^1$

素因数の和:22460

約数の個数: 32

約数和(自身を含む): 640742400

約数和(自身を除く): 330841690

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 199, 398, 995, 1393, 1990, 2786, 6965, 13930, 22247, 44494, 111235, 155729, 222470, 311458, 778645, 1557290, 4427153, 8854306, 22135765, 30990071, 44271530, 61980142, 154950355, 309900710]

約数ペア:

[(1, 309900710), (2, 154950355), (5, 61980142), (7, 44271530), (10, 30990071), (14, 22135765), (35, 8854306), (70, 4427153), (199, 1557290), (398, 778645), (995, 311458), (1393, 222470), (1990, 155729), (2786, 111235), (6965, 44494), (13930, 22247)]