168755220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{21803}}^1$

素因数の和:21861

約数の個数: 72

約数和(自身を含む): 523819296

約数和(自身を除く): 355064076

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 21803, 43606, 65409, 87212, 109015, 130818, 196227, 218030, 261636, 327045, 392454, 436060, 654090, 784908, 937529, 981135, 1308180, 1875058, 1962270, 2812587, 3750116, 3924540, 4687645, 5625174, 8437761, 9375290, 11250348, 14062935, 16875522, 18750580, 28125870, 33751044, 42188805, 56251740, 84377610, 168755220]

約数ペア:

[(1, 168755220), (2, 84377610), (3, 56251740), (4, 42188805), (5, 33751044), (6, 28125870), (9, 18750580), (10, 16875522), (12, 14062935), (15, 11250348), (18, 9375290), (20, 8437761), (30, 5625174), (36, 4687645), (43, 3924540), (45, 3750116), (60, 2812587), (86, 1962270), (90, 1875058), (129, 1308180), (172, 981135), (180, 937529), (215, 784908), (258, 654090), (387, 436060), (430, 392454), (516, 327045), (645, 261636), (774, 218030), (860, 196227), (1290, 130818), (1548, 109015), (1935, 87212), (2580, 65409), (3870, 43606), (7740, 21803)]