20087210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1277}}^1$

素因数の和:1319

約数の個数: 48

約数和(自身を含む): 42833448

約数和(自身を除く): 22746238

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 121, 130, 143, 242, 286, 605, 715, 1210, 1277, 1430, 1573, 2554, 3146, 6385, 7865, 12770, 14047, 15730, 16601, 28094, 33202, 70235, 83005, 140470, 154517, 166010, 182611, 309034, 365222, 772585, 913055, 1545170, 1826110, 2008721, 4017442, 10043605, 20087210]

約数ペア:

[(1, 20087210), (2, 10043605), (5, 4017442), (10, 2008721), (11, 1826110), (13, 1545170), (22, 913055), (26, 772585), (55, 365222), (65, 309034), (110, 182611), (121, 166010), (130, 154517), (143, 140470), (242, 83005), (286, 70235), (605, 33202), (715, 28094), (1210, 16601), (1277, 15730), (1430, 14047), (1573, 12770), (2554, 7865), (3146, 6385)]