28747908

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{379}}^1$

素因数の和:446

約数の個数: 108

約数和(自身を含む): 86726640

約数和(自身を除く): 57978732

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 43, 49, 63, 84, 86, 98, 126, 129, 147, 172, 196, 252, 258, 294, 301, 379, 387, 441, 516, 588, 602, 758, 774, 882, 903, 1137, 1204, 1516, 1548, 1764, 1806, 2107, 2274, 2653, 2709, 3411, 3612, 4214, 4548, 5306, 5418, 6321, 6822, 7959, 8428, 10612, 10836, 12642, 13644, 15918, 16297, 18571, 18963, 23877, 25284, 31836, 32594, 37142, 37926, 47754, 48891, 55713, 65188, 74284, 75852, 95508, 97782, 111426, 114079, 146673, 167139, 195564, 222852, 228158, 293346, 334278, 342237, 456316, 586692, 668556, 684474, 798553, 1026711, 1368948, 1597106, 2053422, 2395659, 3194212, 4106844, 4791318, 7186977, 9582636, 14373954, 28747908]

約数ペア:

[(1, 28747908), (2, 14373954), (3, 9582636), (4, 7186977), (6, 4791318), (7, 4106844), (9, 3194212), (12, 2395659), (14, 2053422), (18, 1597106), (21, 1368948), (28, 1026711), (36, 798553), (42, 684474), (43, 668556), (49, 586692), (63, 456316), (84, 342237), (86, 334278), (98, 293346), (126, 228158), (129, 222852), (147, 195564), (172, 167139), (196, 146673), (252, 114079), (258, 111426), (294, 97782), (301, 95508), (379, 75852), (387, 74284), (441, 65188), (516, 55713), (588, 48891), (602, 47754), (758, 37926), (774, 37142), (882, 32594), (903, 31836), (1137, 25284), (1204, 23877), (1516, 18963), (1548, 18571), (1764, 16297), (1806, 15918), (2107, 13644), (2274, 12642), (2653, 10836), (2709, 10612), (3411, 8428), (3612, 7959), (4214, 6822), (4548, 6321), (5306, 5418)]