28540148

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{487}}^1$

素因数の和:541

約数の個数: 72

約数和(自身を含む): 65423232

約数和(自身を除く): 36883084

約数列:

[1, 2, 4, 7, 13, 14, 23, 26, 28, 46, 49, 52, 91, 92, 98, 161, 182, 196, 299, 322, 364, 487, 598, 637, 644, 974, 1127, 1196, 1274, 1948, 2093, 2254, 2548, 3409, 4186, 4508, 6331, 6818, 8372, 11201, 12662, 13636, 14651, 22402, 23863, 25324, 29302, 44317, 44804, 47726, 58604, 78407, 88634, 95452, 145613, 156814, 177268, 291226, 310219, 313628, 548849, 582452, 620438, 1019291, 1097698, 1240876, 2038582, 2195396, 4077164, 7135037, 14270074, 28540148]

約数ペア:

[(1, 28540148), (2, 14270074), (4, 7135037), (7, 4077164), (13, 2195396), (14, 2038582), (23, 1240876), (26, 1097698), (28, 1019291), (46, 620438), (49, 582452), (52, 548849), (91, 313628), (92, 310219), (98, 291226), (161, 177268), (182, 156814), (196, 145613), (299, 95452), (322, 88634), (364, 78407), (487, 58604), (598, 47726), (637, 44804), (644, 44317), (974, 29302), (1127, 25324), (1196, 23863), (1274, 22402), (1948, 14651), (2093, 13636), (2254, 12662), (2548, 11201), (3409, 8372), (4186, 6818), (4508, 6331)]