80799380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{643}}^1$

素因数の和:816

約数の個数: 48

約数和(自身を含む): 174405504

約数和(自身を除く): 93606124

約数列:

[1, 2, 4, 5, 10, 20, 61, 103, 122, 206, 244, 305, 412, 515, 610, 643, 1030, 1220, 1286, 2060, 2572, 3215, 6283, 6430, 12566, 12860, 25132, 31415, 39223, 62830, 66229, 78446, 125660, 132458, 156892, 196115, 264916, 331145, 392230, 662290, 784460, 1324580, 4039969, 8079938, 16159876, 20199845, 40399690, 80799380]

約数ペア:

[(1, 80799380), (2, 40399690), (4, 20199845), (5, 16159876), (10, 8079938), (20, 4039969), (61, 1324580), (103, 784460), (122, 662290), (206, 392230), (244, 331145), (305, 264916), (412, 196115), (515, 156892), (610, 132458), (643, 125660), (1030, 78446), (1220, 66229), (1286, 62830), (2060, 39223), (2572, 31415), (3215, 25132), (6283, 12860), (6430, 12566)]