20216220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{347}}^1\times {\mathrm{971}}^1$

素因数の和:1330

約数の個数: 48

約数和(自身を含む): 56827008

約数和(自身を除く): 36610788

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 347, 694, 971, 1041, 1388, 1735, 1942, 2082, 2913, 3470, 3884, 4164, 4855, 5205, 5826, 6940, 9710, 10410, 11652, 14565, 19420, 20820, 29130, 58260, 336937, 673874, 1010811, 1347748, 1684685, 2021622, 3369370, 4043244, 5054055, 6738740, 10108110, 20216220]

約数ペア:

[(1, 20216220), (2, 10108110), (3, 6738740), (4, 5054055), (5, 4043244), (6, 3369370), (10, 2021622), (12, 1684685), (15, 1347748), (20, 1010811), (30, 673874), (60, 336937), (347, 58260), (694, 29130), (971, 20820), (1041, 19420), (1388, 14565), (1735, 11652), (1942, 10410), (2082, 9710), (2913, 6940), (3470, 5826), (3884, 5205), (4164, 4855)]