640676304

素因数分解:

$2^4\times 3^5\times {\mathrm{367}}^1\times {\mathrm{449}}^1$

素因数の和:839

約数の個数: 120

約数和(自身を含む): 1868630400

約数和(自身を除く): 1227954096

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 108, 144, 162, 216, 243, 324, 367, 432, 449, 486, 648, 734, 898, 972, 1101, 1296, 1347, 1468, 1796, 1944, 2202, 2694, 2936, 3303, 3592, 3888, 4041, 4404, 5388, 5872, 6606, 7184, 8082, 8808, 9909, 10776, 12123, 13212, 16164, 17616, 19818, 21552, 24246, 26424, 29727, 32328, 36369, 39636, 48492, 52848, 59454, 64656, 72738, 79272, 89181, 96984, 109107, 118908, 145476, 158544, 164783, 178362, 193968, 218214, 237816, 290952, 329566, 356724, 436428, 475632, 494349, 581904, 659132, 713448, 872856, 988698, 1318264, 1426896, 1483047, 1745712, 1977396, 2636528, 2966094, 3954792, 4449141, 5932188, 7909584, 8898282, 11864376, 13347423, 17796564, 23728752, 26694846, 35593128, 40042269, 53389692, 71186256, 80084538, 106779384, 160169076, 213558768, 320338152, 640676304]

約数ペア:

[(1, 640676304), (2, 320338152), (3, 213558768), (4, 160169076), (6, 106779384), (8, 80084538), (9, 71186256), (12, 53389692), (16, 40042269), (18, 35593128), (24, 26694846), (27, 23728752), (36, 17796564), (48, 13347423), (54, 11864376), (72, 8898282), (81, 7909584), (108, 5932188), (144, 4449141), (162, 3954792), (216, 2966094), (243, 2636528), (324, 1977396), (367, 1745712), (432, 1483047), (449, 1426896), (486, 1318264), (648, 988698), (734, 872856), (898, 713448), (972, 659132), (1101, 581904), (1296, 494349), (1347, 475632), (1468, 436428), (1796, 356724), (1944, 329566), (2202, 290952), (2694, 237816), (2936, 218214), (3303, 193968), (3592, 178362), (3888, 164783), (4041, 158544), (4404, 145476), (5388, 118908), (5872, 109107), (6606, 96984), (7184, 89181), (8082, 79272), (8808, 72738), (9909, 64656), (10776, 59454), (12123, 52848), (13212, 48492), (16164, 39636), (17616, 36369), (19818, 32328), (21552, 29727), (24246, 26424)]