640061568

素因数分解:

$2^7\times 3^3\times {\mathrm{167}}^1\times {\mathrm{1109}}^1$

素因数の和:1299

約数の個数: 128

約数和(自身を含む): 1902096000

約数和(自身を除く): 1262034432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 128, 144, 167, 192, 216, 288, 334, 384, 432, 501, 576, 668, 864, 1002, 1109, 1152, 1336, 1503, 1728, 2004, 2218, 2672, 3006, 3327, 3456, 4008, 4436, 4509, 5344, 6012, 6654, 8016, 8872, 9018, 9981, 10688, 12024, 13308, 16032, 17744, 18036, 19962, 21376, 24048, 26616, 29943, 32064, 35488, 36072, 39924, 48096, 53232, 59886, 64128, 70976, 72144, 79848, 96192, 106464, 119772, 141952, 144288, 159696, 185203, 192384, 212928, 239544, 288576, 319392, 370406, 425856, 479088, 555609, 577152, 638784, 740812, 958176, 1111218, 1277568, 1481624, 1666827, 1916352, 2222436, 2963248, 3333654, 3832704, 4444872, 5000481, 5926496, 6667308, 8889744, 10000962, 11852992, 13334616, 17779488, 20001924, 23705984, 26669232, 35558976, 40003848, 53338464, 71117952, 80007696, 106676928, 160015392, 213353856, 320030784, 640061568]

約数ペア:

[(1, 640061568), (2, 320030784), (3, 213353856), (4, 160015392), (6, 106676928), (8, 80007696), (9, 71117952), (12, 53338464), (16, 40003848), (18, 35558976), (24, 26669232), (27, 23705984), (32, 20001924), (36, 17779488), (48, 13334616), (54, 11852992), (64, 10000962), (72, 8889744), (96, 6667308), (108, 5926496), (128, 5000481), (144, 4444872), (167, 3832704), (192, 3333654), (216, 2963248), (288, 2222436), (334, 1916352), (384, 1666827), (432, 1481624), (501, 1277568), (576, 1111218), (668, 958176), (864, 740812), (1002, 638784), (1109, 577152), (1152, 555609), (1336, 479088), (1503, 425856), (1728, 370406), (2004, 319392), (2218, 288576), (2672, 239544), (3006, 212928), (3327, 192384), (3456, 185203), (4008, 159696), (4436, 144288), (4509, 141952), (5344, 119772), (6012, 106464), (6654, 96192), (8016, 79848), (8872, 72144), (9018, 70976), (9981, 64128), (10688, 59886), (12024, 53232), (13308, 48096), (16032, 39924), (17744, 36072), (18036, 35488), (19962, 32064), (21376, 29943), (24048, 26616)]