65561120

素因数分解:

$2^5\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4057}}^1$

素因数の和:4173

約数の個数: 48

約数和(自身を含む): 156460248

約数和(自身を除く): 90899128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 101, 160, 202, 404, 505, 808, 1010, 1616, 2020, 3232, 4040, 4057, 8080, 8114, 16160, 16228, 20285, 32456, 40570, 64912, 81140, 129824, 162280, 324560, 409757, 649120, 819514, 1639028, 2048785, 3278056, 4097570, 6556112, 8195140, 13112224, 16390280, 32780560, 65561120]

約数ペア:

[(1, 65561120), (2, 32780560), (4, 16390280), (5, 13112224), (8, 8195140), (10, 6556112), (16, 4097570), (20, 3278056), (32, 2048785), (40, 1639028), (80, 819514), (101, 649120), (160, 409757), (202, 324560), (404, 162280), (505, 129824), (808, 81140), (1010, 64912), (1616, 40570), (2020, 32456), (3232, 20285), (4040, 16228), (4057, 16160), (8080, 8114)]