20565780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{353}}^1\times {\mathrm{971}}^1$

素因数の和:1336

約数の個数: 48

約数和(自身を含む): 57806784

約数和(自身を除く): 37241004

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 353, 706, 971, 1059, 1412, 1765, 1942, 2118, 2913, 3530, 3884, 4236, 4855, 5295, 5826, 7060, 9710, 10590, 11652, 14565, 19420, 21180, 29130, 58260, 342763, 685526, 1028289, 1371052, 1713815, 2056578, 3427630, 4113156, 5141445, 6855260, 10282890, 20565780]

約数ペア:

[(1, 20565780), (2, 10282890), (3, 6855260), (4, 5141445), (5, 4113156), (6, 3427630), (10, 2056578), (12, 1713815), (15, 1371052), (20, 1028289), (30, 685526), (60, 342763), (353, 58260), (706, 29130), (971, 21180), (1059, 19420), (1412, 14565), (1765, 11652), (1942, 10590), (2118, 9710), (2913, 7060), (3530, 5826), (3884, 5295), (4236, 4855)]