18669640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{281}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 46293120

約数和(自身を除く): 27623480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 151, 220, 281, 302, 440, 562, 604, 755, 1124, 1208, 1405, 1510, 1661, 2248, 2810, 3020, 3091, 3322, 5620, 6040, 6182, 6644, 8305, 11240, 12364, 13288, 15455, 16610, 24728, 30910, 33220, 42431, 61820, 66440, 84862, 123640, 169724, 212155, 339448, 424310, 466741, 848620, 933482, 1697240, 1866964, 2333705, 3733928, 4667410, 9334820, 18669640]

約数ペア:

[(1, 18669640), (2, 9334820), (4, 4667410), (5, 3733928), (8, 2333705), (10, 1866964), (11, 1697240), (20, 933482), (22, 848620), (40, 466741), (44, 424310), (55, 339448), (88, 212155), (110, 169724), (151, 123640), (220, 84862), (281, 66440), (302, 61820), (440, 42431), (562, 33220), (604, 30910), (755, 24728), (1124, 16610), (1208, 15455), (1405, 13288), (1510, 12364), (1661, 11240), (2248, 8305), (2810, 6644), (3020, 6182), (3091, 6040), (3322, 5620)]