128639280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6961}}^1$

素因数の和:6995

約数の個数: 160

約数和(自身を含む): 497253888

約数和(自身を除く): 368614608

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 48, 55, 56, 60, 66, 70, 77, 80, 84, 88, 105, 110, 112, 120, 132, 140, 154, 165, 168, 176, 210, 220, 231, 240, 264, 280, 308, 330, 336, 385, 420, 440, 462, 528, 560, 616, 660, 770, 840, 880, 924, 1155, 1232, 1320, 1540, 1680, 1848, 2310, 2640, 3080, 3696, 4620, 6160, 6961, 9240, 13922, 18480, 20883, 27844, 34805, 41766, 48727, 55688, 69610, 76571, 83532, 97454, 104415, 111376, 139220, 146181, 153142, 167064, 194908, 208830, 229713, 243635, 278440, 292362, 306284, 334128, 382855, 389816, 417660, 459426, 487270, 535997, 556880, 584724, 612568, 730905, 765710, 779632, 835320, 918852, 974540, 1071994, 1148565, 1169448, 1225136, 1461810, 1531420, 1607991, 1670640, 1837704, 1949080, 2143988, 2297130, 2338896, 2679985, 2923620, 3062840, 3215982, 3675408, 3898160, 4287976, 4594260, 5359970, 5847240, 6125680, 6431964, 8039955, 8575952, 9188520, 10719940, 11694480, 12863928, 16079910, 18377040, 21439880, 25727856, 32159820, 42879760, 64319640, 128639280]

約数ペア:

[(1, 128639280), (2, 64319640), (3, 42879760), (4, 32159820), (5, 25727856), (6, 21439880), (7, 18377040), (8, 16079910), (10, 12863928), (11, 11694480), (12, 10719940), (14, 9188520), (15, 8575952), (16, 8039955), (20, 6431964), (21, 6125680), (22, 5847240), (24, 5359970), (28, 4594260), (30, 4287976), (33, 3898160), (35, 3675408), (40, 3215982), (42, 3062840), (44, 2923620), (48, 2679985), (55, 2338896), (56, 2297130), (60, 2143988), (66, 1949080), (70, 1837704), (77, 1670640), (80, 1607991), (84, 1531420), (88, 1461810), (105, 1225136), (110, 1169448), (112, 1148565), (120, 1071994), (132, 974540), (140, 918852), (154, 835320), (165, 779632), (168, 765710), (176, 730905), (210, 612568), (220, 584724), (231, 556880), (240, 535997), (264, 487270), (280, 459426), (308, 417660), (330, 389816), (336, 382855), (385, 334128), (420, 306284), (440, 292362), (462, 278440), (528, 243635), (560, 229713), (616, 208830), (660, 194908), (770, 167064), (840, 153142), (880, 146181), (924, 139220), (1155, 111376), (1232, 104415), (1320, 97454), (1540, 83532), (1680, 76571), (1848, 69610), (2310, 55688), (2640, 48727), (3080, 41766), (3696, 34805), (4620, 27844), (6160, 20883), (6961, 18480), (9240, 13922)]