215781720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{193}}^1$

素因数の和:247

約数の個数: 256

約数和(自身を含む): 817966080

約数和(自身を除く): 602184360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 121, 132, 140, 154, 165, 168, 193, 210, 220, 231, 242, 264, 280, 308, 330, 363, 385, 386, 420, 440, 462, 484, 579, 605, 616, 660, 726, 770, 772, 840, 847, 924, 965, 968, 1155, 1158, 1210, 1320, 1331, 1351, 1452, 1540, 1544, 1694, 1815, 1848, 1930, 2123, 2310, 2316, 2420, 2541, 2662, 2702, 2895, 2904, 3080, 3388, 3630, 3860, 3993, 4053, 4235, 4246, 4620, 4632, 4840, 5082, 5324, 5404, 5790, 6369, 6655, 6755, 6776, 7260, 7720, 7986, 8106, 8470, 8492, 9240, 9317, 10164, 10615, 10648, 10808, 11580, 12705, 12738, 13310, 13510, 14520, 14861, 15972, 16212, 16940, 16984, 18634, 19965, 20265, 20328, 21230, 23160, 23353, 25410, 25476, 26620, 27020, 27951, 29722, 31845, 31944, 32424, 33880, 37268, 39930, 40530, 42460, 44583, 46585, 46706, 50820, 50952, 53240, 54040, 55902, 59444, 63690, 70059, 74305, 74536, 79860, 81060, 84920, 89166, 93170, 93412, 101640, 111804, 116765, 118888, 127380, 139755, 140118, 148610, 159720, 162120, 163471, 178332, 186340, 186824, 222915, 223608, 233530, 254760, 256883, 279510, 280236, 297220, 326942, 350295, 356664, 372680, 445830, 467060, 490413, 513766, 559020, 560472, 594440, 653884, 700590, 770649, 817355, 891660, 934120, 980826, 1027532, 1118040, 1284415, 1307768, 1401180, 1541298, 1634710, 1783320, 1798181, 1961652, 2055064, 2452065, 2568830, 2802360, 3082596, 3269420, 3596362, 3853245, 3923304, 4904130, 5137660, 5394543, 6165192, 6538840, 7192724, 7706490, 8990905, 9808260, 10275320, 10789086, 14385448, 15412980, 17981810, 19616520, 21578172, 26972715, 30825960, 35963620, 43156344, 53945430, 71927240, 107890860, 215781720]

約数ペア:

[(1, 215781720), (2, 107890860), (3, 71927240), (4, 53945430), (5, 43156344), (6, 35963620), (7, 30825960), (8, 26972715), (10, 21578172), (11, 19616520), (12, 17981810), (14, 15412980), (15, 14385448), (20, 10789086), (21, 10275320), (22, 9808260), (24, 8990905), (28, 7706490), (30, 7192724), (33, 6538840), (35, 6165192), (40, 5394543), (42, 5137660), (44, 4904130), (55, 3923304), (56, 3853245), (60, 3596362), (66, 3269420), (70, 3082596), (77, 2802360), (84, 2568830), (88, 2452065), (105, 2055064), (110, 1961652), (120, 1798181), (121, 1783320), (132, 1634710), (140, 1541298), (154, 1401180), (165, 1307768), (168, 1284415), (193, 1118040), (210, 1027532), (220, 980826), (231, 934120), (242, 891660), (264, 817355), (280, 770649), (308, 700590), (330, 653884), (363, 594440), (385, 560472), (386, 559020), (420, 513766), (440, 490413), (462, 467060), (484, 445830), (579, 372680), (605, 356664), (616, 350295), (660, 326942), (726, 297220), (770, 280236), (772, 279510), (840, 256883), (847, 254760), (924, 233530), (965, 223608), (968, 222915), (1155, 186824), (1158, 186340), (1210, 178332), (1320, 163471), (1331, 162120), (1351, 159720), (1452, 148610), (1540, 140118), (1544, 139755), (1694, 127380), (1815, 118888), (1848, 116765), (1930, 111804), (2123, 101640), (2310, 93412), (2316, 93170), (2420, 89166), (2541, 84920), (2662, 81060), (2702, 79860), (2895, 74536), (2904, 74305), (3080, 70059), (3388, 63690), (3630, 59444), (3860, 55902), (3993, 54040), (4053, 53240), (4235, 50952), (4246, 50820), (4620, 46706), (4632, 46585), (4840, 44583), (5082, 42460), (5324, 40530), (5404, 39930), (5790, 37268), (6369, 33880), (6655, 32424), (6755, 31944), (6776, 31845), (7260, 29722), (7720, 27951), (7986, 27020), (8106, 26620), (8470, 25476), (8492, 25410), (9240, 23353), (9317, 23160), (10164, 21230), (10615, 20328), (10648, 20265), (10808, 19965), (11580, 18634), (12705, 16984), (12738, 16940), (13310, 16212), (13510, 15972), (14520, 14861)]