139770640

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{991}}^1$

素因数の和:1088

約数の個数: 80

約数和(自身を含む): 340978176

約数和(自身を除く): 201207536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 43, 80, 82, 86, 164, 172, 205, 215, 328, 344, 410, 430, 656, 688, 820, 860, 991, 1640, 1720, 1763, 1982, 3280, 3440, 3526, 3964, 4955, 7052, 7928, 8815, 9910, 14104, 15856, 17630, 19820, 28208, 35260, 39640, 40631, 42613, 70520, 79280, 81262, 85226, 141040, 162524, 170452, 203155, 213065, 325048, 340904, 406310, 426130, 650096, 681808, 812620, 852260, 1625240, 1704520, 1747133, 3250480, 3409040, 3494266, 6988532, 8735665, 13977064, 17471330, 27954128, 34942660, 69885320, 139770640]

約数ペア:

[(1, 139770640), (2, 69885320), (4, 34942660), (5, 27954128), (8, 17471330), (10, 13977064), (16, 8735665), (20, 6988532), (40, 3494266), (41, 3409040), (43, 3250480), (80, 1747133), (82, 1704520), (86, 1625240), (164, 852260), (172, 812620), (205, 681808), (215, 650096), (328, 426130), (344, 406310), (410, 340904), (430, 325048), (656, 213065), (688, 203155), (820, 170452), (860, 162524), (991, 141040), (1640, 85226), (1720, 81262), (1763, 79280), (1982, 70520), (3280, 42613), (3440, 40631), (3526, 39640), (3964, 35260), (4955, 28208), (7052, 19820), (7928, 17630), (8815, 15856), (9910, 14104)]