219489920

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:123

約数の個数: 256

約数和(自身を含む): 625121280

約数和(自身を除く): 405631360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 31, 32, 37, 40, 46, 52, 62, 64, 65, 74, 80, 92, 104, 115, 124, 128, 130, 148, 155, 160, 184, 185, 208, 230, 248, 260, 296, 299, 310, 320, 368, 370, 403, 416, 460, 481, 496, 520, 592, 598, 620, 640, 713, 736, 740, 806, 832, 851, 920, 962, 992, 1040, 1147, 1184, 1196, 1240, 1426, 1472, 1480, 1495, 1612, 1664, 1702, 1840, 1924, 1984, 2015, 2080, 2294, 2368, 2392, 2405, 2480, 2852, 2944, 2960, 2990, 3224, 3404, 3565, 3680, 3848, 3968, 4030, 4160, 4255, 4588, 4736, 4784, 4810, 4960, 5704, 5735, 5920, 5980, 6448, 6808, 7130, 7360, 7696, 8060, 8320, 8510, 9176, 9269, 9568, 9620, 9920, 11063, 11408, 11470, 11840, 11960, 12896, 13616, 14260, 14720, 14911, 15392, 16120, 17020, 18352, 18538, 19136, 19240, 19840, 22126, 22816, 22940, 23680, 23920, 25792, 26381, 27232, 28520, 29822, 30784, 32240, 34040, 36704, 37076, 38272, 38480, 44252, 45632, 45880, 46345, 47840, 51584, 52762, 54464, 55315, 57040, 59644, 61568, 64480, 68080, 73408, 74152, 74555, 76960, 88504, 91264, 91760, 92690, 95680, 105524, 108928, 110630, 114080, 119288, 128960, 131905, 136160, 146816, 148304, 149110, 153920, 177008, 183520, 185380, 191360, 211048, 221260, 228160, 238576, 257920, 263810, 272320, 296608, 298220, 307840, 342953, 354016, 367040, 370760, 422096, 442520, 456320, 477152, 527620, 544640, 593216, 596440, 685906, 708032, 734080, 741520, 844192, 885040, 954304, 1055240, 1186432, 1192880, 1371812, 1416064, 1483040, 1688384, 1714765, 1770080, 1908608, 2110480, 2385760, 2743624, 2966080, 3376768, 3429530, 3540160, 4220960, 4771520, 5487248, 5932160, 6859060, 7080320, 8441920, 9543040, 10974496, 13718120, 16883840, 21948992, 27436240, 43897984, 54872480, 109744960, 219489920]

約数ペア:

[(1, 219489920), (2, 109744960), (4, 54872480), (5, 43897984), (8, 27436240), (10, 21948992), (13, 16883840), (16, 13718120), (20, 10974496), (23, 9543040), (26, 8441920), (31, 7080320), (32, 6859060), (37, 5932160), (40, 5487248), (46, 4771520), (52, 4220960), (62, 3540160), (64, 3429530), (65, 3376768), (74, 2966080), (80, 2743624), (92, 2385760), (104, 2110480), (115, 1908608), (124, 1770080), (128, 1714765), (130, 1688384), (148, 1483040), (155, 1416064), (160, 1371812), (184, 1192880), (185, 1186432), (208, 1055240), (230, 954304), (248, 885040), (260, 844192), (296, 741520), (299, 734080), (310, 708032), (320, 685906), (368, 596440), (370, 593216), (403, 544640), (416, 527620), (460, 477152), (481, 456320), (496, 442520), (520, 422096), (592, 370760), (598, 367040), (620, 354016), (640, 342953), (713, 307840), (736, 298220), (740, 296608), (806, 272320), (832, 263810), (851, 257920), (920, 238576), (962, 228160), (992, 221260), (1040, 211048), (1147, 191360), (1184, 185380), (1196, 183520), (1240, 177008), (1426, 153920), (1472, 149110), (1480, 148304), (1495, 146816), (1612, 136160), (1664, 131905), (1702, 128960), (1840, 119288), (1924, 114080), (1984, 110630), (2015, 108928), (2080, 105524), (2294, 95680), (2368, 92690), (2392, 91760), (2405, 91264), (2480, 88504), (2852, 76960), (2944, 74555), (2960, 74152), (2990, 73408), (3224, 68080), (3404, 64480), (3565, 61568), (3680, 59644), (3848, 57040), (3968, 55315), (4030, 54464), (4160, 52762), (4255, 51584), (4588, 47840), (4736, 46345), (4784, 45880), (4810, 45632), (4960, 44252), (5704, 38480), (5735, 38272), (5920, 37076), (5980, 36704), (6448, 34040), (6808, 32240), (7130, 30784), (7360, 29822), (7696, 28520), (8060, 27232), (8320, 26381), (8510, 25792), (9176, 23920), (9269, 23680), (9568, 22940), (9620, 22816), (9920, 22126), (11063, 19840), (11408, 19240), (11470, 19136), (11840, 18538), (11960, 18352), (12896, 17020), (13616, 16120), (14260, 15392), (14720, 14911)]