640559664

素因数分解:

$2^4\times 3^5\times {\mathrm{67}}^1\times {\mathrm{2459}}^1$

素因数の和:2549

約数の個数: 120

約数和(自身を含む): 1887587520

約数和(自身を除く): 1247027856

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 67, 72, 81, 108, 134, 144, 162, 201, 216, 243, 268, 324, 402, 432, 486, 536, 603, 648, 804, 972, 1072, 1206, 1296, 1608, 1809, 1944, 2412, 2459, 3216, 3618, 3888, 4824, 4918, 5427, 7236, 7377, 9648, 9836, 10854, 14472, 14754, 16281, 19672, 21708, 22131, 28944, 29508, 32562, 39344, 43416, 44262, 59016, 65124, 66393, 86832, 88524, 118032, 130248, 132786, 164753, 177048, 199179, 260496, 265572, 329506, 354096, 398358, 494259, 531144, 597537, 659012, 796716, 988518, 1062288, 1195074, 1318024, 1482777, 1593432, 1977036, 2390148, 2636048, 2965554, 3186864, 3954072, 4448331, 4780296, 5931108, 7908144, 8896662, 9560592, 11862216, 13344993, 17793324, 23724432, 26689986, 35586648, 40034979, 53379972, 71173296, 80069958, 106759944, 160139916, 213519888, 320279832, 640559664]

約数ペア:

[(1, 640559664), (2, 320279832), (3, 213519888), (4, 160139916), (6, 106759944), (8, 80069958), (9, 71173296), (12, 53379972), (16, 40034979), (18, 35586648), (24, 26689986), (27, 23724432), (36, 17793324), (48, 13344993), (54, 11862216), (67, 9560592), (72, 8896662), (81, 7908144), (108, 5931108), (134, 4780296), (144, 4448331), (162, 3954072), (201, 3186864), (216, 2965554), (243, 2636048), (268, 2390148), (324, 1977036), (402, 1593432), (432, 1482777), (486, 1318024), (536, 1195074), (603, 1062288), (648, 988518), (804, 796716), (972, 659012), (1072, 597537), (1206, 531144), (1296, 494259), (1608, 398358), (1809, 354096), (1944, 329506), (2412, 265572), (2459, 260496), (3216, 199179), (3618, 177048), (3888, 164753), (4824, 132786), (4918, 130248), (5427, 118032), (7236, 88524), (7377, 86832), (9648, 66393), (9836, 65124), (10854, 59016), (14472, 44262), (14754, 43416), (16281, 39344), (19672, 32562), (21708, 29508), (22131, 28944)]