217420840

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:121

約数の個数: 256

約数和(自身を含む): 653184000

約数和(自身を除く): 435763160

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 23, 26, 28, 35, 40, 46, 49, 52, 53, 56, 65, 70, 91, 92, 98, 104, 106, 115, 130, 140, 161, 182, 184, 196, 212, 230, 245, 260, 265, 280, 299, 322, 343, 364, 371, 392, 424, 455, 460, 490, 520, 530, 598, 637, 644, 686, 689, 728, 742, 805, 910, 920, 980, 1060, 1127, 1196, 1219, 1274, 1288, 1372, 1378, 1484, 1495, 1610, 1715, 1820, 1855, 1960, 2093, 2120, 2254, 2392, 2438, 2548, 2597, 2744, 2756, 2968, 2990, 3185, 3220, 3430, 3445, 3640, 3710, 4186, 4459, 4508, 4823, 4876, 5096, 5194, 5512, 5635, 5980, 6095, 6370, 6440, 6860, 6890, 7420, 7889, 8372, 8533, 8918, 9016, 9646, 9752, 10388, 10465, 11270, 11960, 12190, 12740, 12985, 13720, 13780, 14651, 14840, 15778, 15847, 16744, 17066, 17836, 18179, 19292, 20776, 20930, 22295, 22540, 24115, 24380, 25480, 25970, 27560, 29302, 31556, 31694, 33761, 34132, 35672, 36358, 38584, 39445, 41860, 42665, 44590, 45080, 48230, 48760, 51940, 58604, 59731, 63112, 63388, 67522, 68264, 72716, 73255, 78890, 79235, 83720, 85330, 89180, 90895, 96460, 102557, 103880, 110929, 117208, 119462, 126776, 135044, 145432, 146510, 157780, 158470, 168805, 170660, 178360, 181790, 192920, 205114, 221858, 236327, 238924, 270088, 293020, 298655, 315560, 316940, 337610, 341320, 363580, 410228, 418117, 443716, 472654, 477848, 512785, 554645, 586040, 597310, 633880, 675220, 727160, 776503, 820456, 836234, 887432, 945308, 1025570, 1109290, 1181635, 1194620, 1350440, 1553006, 1672468, 1890616, 2051140, 2090585, 2218580, 2363270, 2389240, 3106012, 3344936, 3882515, 4102280, 4181170, 4437160, 4726540, 5435521, 6212024, 7765030, 8362340, 9453080, 10871042, 15530060, 16724680, 21742084, 27177605, 31060120, 43484168, 54355210, 108710420, 217420840]

約数ペア:

[(1, 217420840), (2, 108710420), (4, 54355210), (5, 43484168), (7, 31060120), (8, 27177605), (10, 21742084), (13, 16724680), (14, 15530060), (20, 10871042), (23, 9453080), (26, 8362340), (28, 7765030), (35, 6212024), (40, 5435521), (46, 4726540), (49, 4437160), (52, 4181170), (53, 4102280), (56, 3882515), (65, 3344936), (70, 3106012), (91, 2389240), (92, 2363270), (98, 2218580), (104, 2090585), (106, 2051140), (115, 1890616), (130, 1672468), (140, 1553006), (161, 1350440), (182, 1194620), (184, 1181635), (196, 1109290), (212, 1025570), (230, 945308), (245, 887432), (260, 836234), (265, 820456), (280, 776503), (299, 727160), (322, 675220), (343, 633880), (364, 597310), (371, 586040), (392, 554645), (424, 512785), (455, 477848), (460, 472654), (490, 443716), (520, 418117), (530, 410228), (598, 363580), (637, 341320), (644, 337610), (686, 316940), (689, 315560), (728, 298655), (742, 293020), (805, 270088), (910, 238924), (920, 236327), (980, 221858), (1060, 205114), (1127, 192920), (1196, 181790), (1219, 178360), (1274, 170660), (1288, 168805), (1372, 158470), (1378, 157780), (1484, 146510), (1495, 145432), (1610, 135044), (1715, 126776), (1820, 119462), (1855, 117208), (1960, 110929), (2093, 103880), (2120, 102557), (2254, 96460), (2392, 90895), (2438, 89180), (2548, 85330), (2597, 83720), (2744, 79235), (2756, 78890), (2968, 73255), (2990, 72716), (3185, 68264), (3220, 67522), (3430, 63388), (3445, 63112), (3640, 59731), (3710, 58604), (4186, 51940), (4459, 48760), (4508, 48230), (4823, 45080), (4876, 44590), (5096, 42665), (5194, 41860), (5512, 39445), (5635, 38584), (5980, 36358), (6095, 35672), (6370, 34132), (6440, 33761), (6860, 31694), (6890, 31556), (7420, 29302), (7889, 27560), (8372, 25970), (8533, 25480), (8918, 24380), (9016, 24115), (9646, 22540), (9752, 22295), (10388, 20930), (10465, 20776), (11270, 19292), (11960, 18179), (12190, 17836), (12740, 17066), (12985, 16744), (13720, 15847), (13780, 15778), (14651, 14840)]