640308672

素因数分解:

$2^6\times 3^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:416

約数の個数: 224

約数和(自身を含む): 2027773440

約数和(自身を除く): 1387464768

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 27, 32, 34, 36, 48, 51, 54, 64, 68, 71, 72, 96, 102, 108, 136, 142, 144, 153, 192, 204, 213, 216, 272, 284, 288, 306, 307, 408, 426, 432, 459, 544, 568, 576, 612, 614, 639, 816, 852, 864, 918, 921, 1088, 1136, 1207, 1224, 1228, 1278, 1632, 1704, 1728, 1836, 1842, 1917, 2272, 2414, 2448, 2456, 2556, 2763, 3264, 3408, 3621, 3672, 3684, 3834, 4544, 4828, 4896, 4912, 5112, 5219, 5526, 6816, 7242, 7344, 7368, 7668, 8289, 9656, 9792, 9824, 10224, 10438, 10863, 11052, 13632, 14484, 14688, 14736, 15336, 15657, 16578, 19312, 19648, 20448, 20876, 21726, 21797, 22104, 28968, 29376, 29472, 30672, 31314, 32589, 33156, 38624, 40896, 41752, 43452, 43594, 44208, 46971, 57936, 58944, 61344, 62628, 65178, 65391, 66312, 77248, 83504, 86904, 87188, 88416, 93942, 115872, 122688, 125256, 130356, 130782, 132624, 140913, 167008, 173808, 174376, 176832, 187884, 196173, 231744, 250512, 260712, 261564, 265248, 281826, 334016, 347616, 348752, 370549, 375768, 392346, 501024, 521424, 523128, 530496, 563652, 588519, 695232, 697504, 741098, 751536, 784692, 1002048, 1042848, 1046256, 1111647, 1127304, 1177038, 1395008, 1482196, 1503072, 1569384, 2085696, 2092512, 2223294, 2254608, 2354076, 2964392, 3006144, 3138768, 3334941, 4185024, 4446588, 4509216, 4708152, 5928784, 6277536, 6669882, 8893176, 9018432, 9416304, 10004823, 11857568, 12555072, 13339764, 17786352, 18832608, 20009646, 23715136, 26679528, 35572704, 37665216, 40019292, 53359056, 71145408, 80038584, 106718112, 160077168, 213436224, 320154336, 640308672]

約数ペア:

[(1, 640308672), (2, 320154336), (3, 213436224), (4, 160077168), (6, 106718112), (8, 80038584), (9, 71145408), (12, 53359056), (16, 40019292), (17, 37665216), (18, 35572704), (24, 26679528), (27, 23715136), (32, 20009646), (34, 18832608), (36, 17786352), (48, 13339764), (51, 12555072), (54, 11857568), (64, 10004823), (68, 9416304), (71, 9018432), (72, 8893176), (96, 6669882), (102, 6277536), (108, 5928784), (136, 4708152), (142, 4509216), (144, 4446588), (153, 4185024), (192, 3334941), (204, 3138768), (213, 3006144), (216, 2964392), (272, 2354076), (284, 2254608), (288, 2223294), (306, 2092512), (307, 2085696), (408, 1569384), (426, 1503072), (432, 1482196), (459, 1395008), (544, 1177038), (568, 1127304), (576, 1111647), (612, 1046256), (614, 1042848), (639, 1002048), (816, 784692), (852, 751536), (864, 741098), (918, 697504), (921, 695232), (1088, 588519), (1136, 563652), (1207, 530496), (1224, 523128), (1228, 521424), (1278, 501024), (1632, 392346), (1704, 375768), (1728, 370549), (1836, 348752), (1842, 347616), (1917, 334016), (2272, 281826), (2414, 265248), (2448, 261564), (2456, 260712), (2556, 250512), (2763, 231744), (3264, 196173), (3408, 187884), (3621, 176832), (3672, 174376), (3684, 173808), (3834, 167008), (4544, 140913), (4828, 132624), (4896, 130782), (4912, 130356), (5112, 125256), (5219, 122688), (5526, 115872), (6816, 93942), (7242, 88416), (7344, 87188), (7368, 86904), (7668, 83504), (8289, 77248), (9656, 66312), (9792, 65391), (9824, 65178), (10224, 62628), (10438, 61344), (10863, 58944), (11052, 57936), (13632, 46971), (14484, 44208), (14688, 43594), (14736, 43452), (15336, 41752), (15657, 40896), (16578, 38624), (19312, 33156), (19648, 32589), (20448, 31314), (20876, 30672), (21726, 29472), (21797, 29376), (22104, 28968)]