90002110

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{8101}}^1$

素因数の和:8220

約数の個数: 32

約数和(自身を含む): 178503264

約数和(自身を除く): 88501154

約数列:

[1, 2, 5, 10, 11, 22, 55, 101, 110, 202, 505, 1010, 1111, 2222, 5555, 8101, 11110, 16202, 40505, 81010, 89111, 178222, 445555, 818201, 891110, 1636402, 4091005, 8182010, 9000211, 18000422, 45001055, 90002110]

約数ペア:

[(1, 90002110), (2, 45001055), (5, 18000422), (10, 9000211), (11, 8182010), (22, 4091005), (55, 1636402), (101, 891110), (110, 818201), (202, 445555), (505, 178222), (1010, 89111), (1111, 81010), (2222, 40505), (5555, 16202), (8101, 11110)]