68908400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{15661}}^1$

素因数の和:15690

約数の個数: 60

約数和(自身を含む): 180614184

約数和(自身を除く): 111705784

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 176, 200, 220, 275, 400, 440, 550, 880, 1100, 2200, 4400, 15661, 31322, 62644, 78305, 125288, 156610, 172271, 250576, 313220, 344542, 391525, 626440, 689084, 783050, 861355, 1252880, 1378168, 1566100, 1722710, 2756336, 3132200, 3445420, 4306775, 6264400, 6890840, 8613550, 13781680, 17227100, 34454200, 68908400]

約数ペア:

[(1, 68908400), (2, 34454200), (4, 17227100), (5, 13781680), (8, 8613550), (10, 6890840), (11, 6264400), (16, 4306775), (20, 3445420), (22, 3132200), (25, 2756336), (40, 1722710), (44, 1566100), (50, 1378168), (55, 1252880), (80, 861355), (88, 783050), (100, 689084), (110, 626440), (176, 391525), (200, 344542), (220, 313220), (275, 250576), (400, 172271), (440, 156610), (550, 125288), (880, 78305), (1100, 62644), (2200, 31322), (4400, 15661)]