80400100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{73091}}^1$

素因数の和:73116

約数の個数: 36

約数和(自身を含む): 190331568

約数和(自身を除く): 109931468

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 73091, 146182, 292364, 365455, 730910, 804001, 1461820, 1608002, 1827275, 3216004, 3654550, 4020005, 7309100, 8040010, 16080020, 20100025, 40200050, 80400100]

約数ペア:

[(1, 80400100), (2, 40200050), (4, 20100025), (5, 16080020), (10, 8040010), (11, 7309100), (20, 4020005), (22, 3654550), (25, 3216004), (44, 1827275), (50, 1608002), (55, 1461820), (100, 804001), (110, 730910), (220, 365455), (275, 292364), (550, 146182), (1100, 73091)]