2020123625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{6247}}^1$

素因数の和:6474

約数の個数: 32

約数和(自身を含む): 2729126400

約数和(自身を除く): 709002775

約数列:

[1, 5, 13, 25, 65, 125, 199, 325, 995, 1625, 2587, 4975, 6247, 12935, 24875, 31235, 64675, 81211, 156175, 323375, 406055, 780875, 1243153, 2030275, 6215765, 10151375, 16160989, 31078825, 80804945, 155394125, 404024725, 2020123625]

約数ペア:

[(1, 2020123625), (5, 404024725), (13, 155394125), (25, 80804945), (65, 31078825), (125, 16160989), (199, 10151375), (325, 6215765), (995, 2030275), (1625, 1243153), (2587, 780875), (4975, 406055), (6247, 323375), (12935, 156175), (24875, 81211), (31235, 64675)]