171223920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{641}}^1$

素因数の和:720

約数の個数: 240

約数和(自身を含む): 670617792

約数和(自身を除く): 499393872

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 53, 56, 60, 63, 70, 72, 80, 84, 90, 105, 106, 112, 120, 126, 140, 144, 159, 168, 180, 210, 212, 240, 252, 265, 280, 315, 318, 336, 360, 371, 420, 424, 477, 504, 530, 560, 630, 636, 641, 720, 742, 795, 840, 848, 954, 1008, 1060, 1113, 1260, 1272, 1282, 1484, 1590, 1680, 1855, 1908, 1923, 2120, 2226, 2385, 2520, 2544, 2564, 2968, 3180, 3205, 3339, 3710, 3816, 3846, 4240, 4452, 4487, 4770, 5040, 5128, 5565, 5769, 5936, 6360, 6410, 6678, 7420, 7632, 7692, 8904, 8974, 9540, 9615, 10256, 11130, 11538, 12720, 12820, 13356, 13461, 14840, 15384, 16695, 17808, 17948, 19080, 19230, 22260, 22435, 23076, 25640, 26712, 26922, 28845, 29680, 30768, 33390, 33973, 35896, 38160, 38460, 40383, 44520, 44870, 46152, 51280, 53424, 53844, 57690, 66780, 67305, 67946, 71792, 76920, 80766, 89040, 89740, 92304, 101919, 107688, 115380, 133560, 134610, 135892, 153840, 161532, 169865, 179480, 201915, 203838, 215376, 230760, 237811, 267120, 269220, 271784, 305757, 323064, 339730, 358960, 403830, 407676, 461520, 475622, 509595, 538440, 543568, 611514, 646128, 679460, 713433, 807660, 815352, 951244, 1019190, 1076880, 1189055, 1223028, 1358920, 1426866, 1528785, 1615320, 1630704, 1902488, 2038380, 2140299, 2378110, 2446056, 2717840, 2853732, 3057570, 3230640, 3567165, 3804976, 4076760, 4280598, 4756220, 4892112, 5707464, 6115140, 7134330, 8153520, 8561196, 9512440, 10701495, 11414928, 12230280, 14268660, 17122392, 19024880, 21402990, 24460560, 28537320, 34244784, 42805980, 57074640, 85611960, 171223920]

約数ペア:

[(1, 171223920), (2, 85611960), (3, 57074640), (4, 42805980), (5, 34244784), (6, 28537320), (7, 24460560), (8, 21402990), (9, 19024880), (10, 17122392), (12, 14268660), (14, 12230280), (15, 11414928), (16, 10701495), (18, 9512440), (20, 8561196), (21, 8153520), (24, 7134330), (28, 6115140), (30, 5707464), (35, 4892112), (36, 4756220), (40, 4280598), (42, 4076760), (45, 3804976), (48, 3567165), (53, 3230640), (56, 3057570), (60, 2853732), (63, 2717840), (70, 2446056), (72, 2378110), (80, 2140299), (84, 2038380), (90, 1902488), (105, 1630704), (106, 1615320), (112, 1528785), (120, 1426866), (126, 1358920), (140, 1223028), (144, 1189055), (159, 1076880), (168, 1019190), (180, 951244), (210, 815352), (212, 807660), (240, 713433), (252, 679460), (265, 646128), (280, 611514), (315, 543568), (318, 538440), (336, 509595), (360, 475622), (371, 461520), (420, 407676), (424, 403830), (477, 358960), (504, 339730), (530, 323064), (560, 305757), (630, 271784), (636, 269220), (641, 267120), (720, 237811), (742, 230760), (795, 215376), (840, 203838), (848, 201915), (954, 179480), (1008, 169865), (1060, 161532), (1113, 153840), (1260, 135892), (1272, 134610), (1282, 133560), (1484, 115380), (1590, 107688), (1680, 101919), (1855, 92304), (1908, 89740), (1923, 89040), (2120, 80766), (2226, 76920), (2385, 71792), (2520, 67946), (2544, 67305), (2564, 66780), (2968, 57690), (3180, 53844), (3205, 53424), (3339, 51280), (3710, 46152), (3816, 44870), (3846, 44520), (4240, 40383), (4452, 38460), (4487, 38160), (4770, 35896), (5040, 33973), (5128, 33390), (5565, 30768), (5769, 29680), (5936, 28845), (6360, 26922), (6410, 26712), (6678, 25640), (7420, 23076), (7632, 22435), (7692, 22260), (8904, 19230), (8974, 19080), (9540, 17948), (9615, 17808), (10256, 16695), (11130, 15384), (11538, 14840), (12720, 13461), (12820, 13356)]