20075770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:271

約数の個数: 64

約数和(自身を含む): 43182720

約数和(自身を除く): 23106950

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 101, 110, 130, 139, 143, 202, 278, 286, 505, 695, 715, 1010, 1111, 1313, 1390, 1430, 1529, 1807, 2222, 2626, 3058, 3614, 5555, 6565, 7645, 9035, 11110, 13130, 14039, 14443, 15290, 18070, 19877, 28078, 28886, 39754, 70195, 72215, 99385, 140390, 144430, 154429, 182507, 198770, 308858, 365014, 772145, 912535, 1544290, 1825070, 2007577, 4015154, 10037885, 20075770]

約数ペア:

[(1, 20075770), (2, 10037885), (5, 4015154), (10, 2007577), (11, 1825070), (13, 1544290), (22, 912535), (26, 772145), (55, 365014), (65, 308858), (101, 198770), (110, 182507), (130, 154429), (139, 144430), (143, 140390), (202, 99385), (278, 72215), (286, 70195), (505, 39754), (695, 28886), (715, 28078), (1010, 19877), (1111, 18070), (1313, 15290), (1390, 14443), (1430, 14039), (1529, 13130), (1807, 11110), (2222, 9035), (2626, 7645), (3058, 6565), (3614, 5555)]