28919280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:96

約数の個数: 240

約数和(自身を含む): 104564736

約数和(自身を除く): 75645456

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 23, 24, 26, 30, 31, 39, 40, 46, 48, 52, 60, 62, 65, 69, 78, 80, 92, 93, 104, 115, 120, 124, 130, 138, 155, 156, 169, 184, 186, 195, 208, 230, 240, 248, 260, 276, 299, 310, 312, 338, 345, 368, 372, 390, 403, 460, 465, 496, 507, 520, 552, 598, 620, 624, 676, 690, 713, 744, 780, 806, 845, 897, 920, 930, 1014, 1040, 1104, 1196, 1209, 1240, 1352, 1380, 1426, 1488, 1495, 1560, 1612, 1690, 1794, 1840, 1860, 2015, 2028, 2139, 2392, 2418, 2480, 2535, 2704, 2760, 2852, 2990, 3120, 3224, 3380, 3565, 3588, 3720, 3887, 4030, 4056, 4278, 4485, 4784, 4836, 5070, 5239, 5520, 5704, 5980, 6045, 6448, 6760, 7130, 7176, 7440, 7774, 8060, 8112, 8556, 8970, 9269, 9672, 10140, 10478, 10695, 11408, 11661, 11960, 12090, 13520, 14260, 14352, 15548, 15717, 16120, 17112, 17940, 18538, 19344, 19435, 20280, 20956, 21390, 23322, 23920, 24180, 26195, 27807, 28520, 31096, 31434, 32240, 34224, 35880, 37076, 38870, 40560, 41912, 42780, 46345, 46644, 48360, 52390, 55614, 57040, 58305, 62192, 62868, 71760, 74152, 77740, 78585, 83824, 85560, 92690, 93288, 96720, 104780, 111228, 116610, 120497, 125736, 139035, 148304, 155480, 157170, 171120, 185380, 186576, 209560, 222456, 233220, 240994, 251472, 278070, 310960, 314340, 361491, 370760, 419120, 444912, 466440, 481988, 556140, 602485, 628680, 722982, 741520, 932880, 963976, 1112280, 1204970, 1257360, 1445964, 1807455, 1927952, 2224560, 2409940, 2891928, 3614910, 4819880, 5783856, 7229820, 9639760, 14459640, 28919280]

約数ペア:

[(1, 28919280), (2, 14459640), (3, 9639760), (4, 7229820), (5, 5783856), (6, 4819880), (8, 3614910), (10, 2891928), (12, 2409940), (13, 2224560), (15, 1927952), (16, 1807455), (20, 1445964), (23, 1257360), (24, 1204970), (26, 1112280), (30, 963976), (31, 932880), (39, 741520), (40, 722982), (46, 628680), (48, 602485), (52, 556140), (60, 481988), (62, 466440), (65, 444912), (69, 419120), (78, 370760), (80, 361491), (92, 314340), (93, 310960), (104, 278070), (115, 251472), (120, 240994), (124, 233220), (130, 222456), (138, 209560), (155, 186576), (156, 185380), (169, 171120), (184, 157170), (186, 155480), (195, 148304), (208, 139035), (230, 125736), (240, 120497), (248, 116610), (260, 111228), (276, 104780), (299, 96720), (310, 93288), (312, 92690), (338, 85560), (345, 83824), (368, 78585), (372, 77740), (390, 74152), (403, 71760), (460, 62868), (465, 62192), (496, 58305), (507, 57040), (520, 55614), (552, 52390), (598, 48360), (620, 46644), (624, 46345), (676, 42780), (690, 41912), (713, 40560), (744, 38870), (780, 37076), (806, 35880), (845, 34224), (897, 32240), (920, 31434), (930, 31096), (1014, 28520), (1040, 27807), (1104, 26195), (1196, 24180), (1209, 23920), (1240, 23322), (1352, 21390), (1380, 20956), (1426, 20280), (1488, 19435), (1495, 19344), (1560, 18538), (1612, 17940), (1690, 17112), (1794, 16120), (1840, 15717), (1860, 15548), (2015, 14352), (2028, 14260), (2139, 13520), (2392, 12090), (2418, 11960), (2480, 11661), (2535, 11408), (2704, 10695), (2760, 10478), (2852, 10140), (2990, 9672), (3120, 9269), (3224, 8970), (3380, 8556), (3565, 8112), (3588, 8060), (3720, 7774), (3887, 7440), (4030, 7176), (4056, 7130), (4278, 6760), (4485, 6448), (4784, 6045), (4836, 5980), (5070, 5704), (5239, 5520)]