15956220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{37991}}^1$

素因数の和:38010

約数の個数: 48

約数和(自身を含む): 51061248

約数和(自身を除く): 35105028

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 37991, 75982, 113973, 151964, 189955, 227946, 265937, 379910, 455892, 531874, 569865, 759820, 797811, 1063748, 1139730, 1329685, 1595622, 2279460, 2659370, 3191244, 3989055, 5318740, 7978110, 15956220]

約数ペア:

[(1, 15956220), (2, 7978110), (3, 5318740), (4, 3989055), (5, 3191244), (6, 2659370), (7, 2279460), (10, 1595622), (12, 1329685), (14, 1139730), (15, 1063748), (20, 797811), (21, 759820), (28, 569865), (30, 531874), (35, 455892), (42, 379910), (60, 265937), (70, 227946), (84, 189955), (105, 151964), (140, 113973), (210, 75982), (420, 37991)]