18779820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:335

約数の個数: 96

約数和(自身を含む): 55883520

約数和(自身を除く): 37103700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 43, 58, 60, 86, 87, 116, 129, 145, 172, 174, 215, 251, 258, 290, 348, 430, 435, 502, 516, 580, 645, 753, 860, 870, 1004, 1247, 1255, 1290, 1506, 1740, 2494, 2510, 2580, 3012, 3741, 3765, 4988, 5020, 6235, 7279, 7482, 7530, 10793, 12470, 14558, 14964, 15060, 18705, 21586, 21837, 24940, 29116, 32379, 36395, 37410, 43172, 43674, 53965, 64758, 72790, 74820, 87348, 107930, 109185, 129516, 145580, 161895, 215860, 218370, 312997, 323790, 436740, 625994, 647580, 938991, 1251988, 1564985, 1877982, 3129970, 3755964, 4694955, 6259940, 9389910, 18779820]

約数ペア:

[(1, 18779820), (2, 9389910), (3, 6259940), (4, 4694955), (5, 3755964), (6, 3129970), (10, 1877982), (12, 1564985), (15, 1251988), (20, 938991), (29, 647580), (30, 625994), (43, 436740), (58, 323790), (60, 312997), (86, 218370), (87, 215860), (116, 161895), (129, 145580), (145, 129516), (172, 109185), (174, 107930), (215, 87348), (251, 74820), (258, 72790), (290, 64758), (348, 53965), (430, 43674), (435, 43172), (502, 37410), (516, 36395), (580, 32379), (645, 29116), (753, 24940), (860, 21837), (870, 21586), (1004, 18705), (1247, 15060), (1255, 14964), (1290, 14558), (1506, 12470), (1740, 10793), (2494, 7530), (2510, 7482), (2580, 7279), (3012, 6235), (3741, 5020), (3765, 4988)]