28887040

素因数分解:

$2^{11}\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:78

約数の個数: 192

約数和(自身を含む): 88058880

約数和(自身を除く): 59171840

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 32, 35, 40, 52, 56, 62, 64, 65, 70, 80, 91, 104, 112, 124, 128, 130, 140, 155, 160, 182, 208, 217, 224, 248, 256, 260, 280, 310, 320, 364, 403, 416, 434, 448, 455, 496, 512, 520, 560, 620, 640, 728, 806, 832, 868, 896, 910, 992, 1024, 1040, 1085, 1120, 1240, 1280, 1456, 1612, 1664, 1736, 1792, 1820, 1984, 2015, 2048, 2080, 2170, 2240, 2480, 2560, 2821, 2912, 3224, 3328, 3472, 3584, 3640, 3968, 4030, 4160, 4340, 4480, 4960, 5120, 5642, 5824, 6448, 6656, 6944, 7168, 7280, 7936, 8060, 8320, 8680, 8960, 9920, 10240, 11284, 11648, 12896, 13312, 13888, 14105, 14336, 14560, 15872, 16120, 16640, 17360, 17920, 19840, 22568, 23296, 25792, 26624, 27776, 28210, 29120, 31744, 32240, 33280, 34720, 35840, 39680, 45136, 46592, 51584, 55552, 56420, 58240, 63488, 64480, 66560, 69440, 71680, 79360, 90272, 93184, 103168, 111104, 112840, 116480, 128960, 133120, 138880, 158720, 180544, 186368, 206336, 222208, 225680, 232960, 257920, 277760, 317440, 361088, 412672, 444416, 451360, 465920, 515840, 555520, 722176, 825344, 902720, 931840, 1031680, 1111040, 1444352, 1805440, 2063360, 2222080, 2888704, 3610880, 4126720, 5777408, 7221760, 14443520, 28887040]

約数ペア:

[(1, 28887040), (2, 14443520), (4, 7221760), (5, 5777408), (7, 4126720), (8, 3610880), (10, 2888704), (13, 2222080), (14, 2063360), (16, 1805440), (20, 1444352), (26, 1111040), (28, 1031680), (31, 931840), (32, 902720), (35, 825344), (40, 722176), (52, 555520), (56, 515840), (62, 465920), (64, 451360), (65, 444416), (70, 412672), (80, 361088), (91, 317440), (104, 277760), (112, 257920), (124, 232960), (128, 225680), (130, 222208), (140, 206336), (155, 186368), (160, 180544), (182, 158720), (208, 138880), (217, 133120), (224, 128960), (248, 116480), (256, 112840), (260, 111104), (280, 103168), (310, 93184), (320, 90272), (364, 79360), (403, 71680), (416, 69440), (434, 66560), (448, 64480), (455, 63488), (496, 58240), (512, 56420), (520, 55552), (560, 51584), (620, 46592), (640, 45136), (728, 39680), (806, 35840), (832, 34720), (868, 33280), (896, 32240), (910, 31744), (992, 29120), (1024, 28210), (1040, 27776), (1085, 26624), (1120, 25792), (1240, 23296), (1280, 22568), (1456, 19840), (1612, 17920), (1664, 17360), (1736, 16640), (1792, 16120), (1820, 15872), (1984, 14560), (2015, 14336), (2048, 14105), (2080, 13888), (2170, 13312), (2240, 12896), (2480, 11648), (2560, 11284), (2821, 10240), (2912, 9920), (3224, 8960), (3328, 8680), (3472, 8320), (3584, 8060), (3640, 7936), (3968, 7280), (4030, 7168), (4160, 6944), (4340, 6656), (4480, 6448), (4960, 5824), (5120, 5642)]