290796660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20981}}^1$

素因数の和:21014

約数の個数: 144

約数和(自身を含む): 1099792512

約数和(自身を除く): 808995852

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 33, 35, 36, 42, 44, 45, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 110, 126, 132, 140, 154, 165, 180, 198, 210, 220, 231, 252, 308, 315, 330, 385, 396, 420, 462, 495, 630, 660, 693, 770, 924, 990, 1155, 1260, 1386, 1540, 1980, 2310, 2772, 3465, 4620, 6930, 13860, 20981, 41962, 62943, 83924, 104905, 125886, 146867, 188829, 209810, 230791, 251772, 293734, 314715, 377658, 419620, 440601, 461582, 587468, 629430, 692373, 734335, 755316, 881202, 923164, 944145, 1153955, 1258860, 1321803, 1384746, 1468670, 1615537, 1762404, 1888290, 2077119, 2203005, 2307910, 2643606, 2769492, 2937340, 3231074, 3461865, 3776580, 4154238, 4406010, 4615820, 4846611, 5287212, 6462148, 6609015, 6923730, 8077685, 8308476, 8812020, 9693222, 10385595, 13218030, 13847460, 14539833, 16155370, 19386444, 20771190, 24233055, 26436060, 29079666, 32310740, 41542380, 48466110, 58159332, 72699165, 96932220, 145398330, 290796660]

約数ペア:

[(1, 290796660), (2, 145398330), (3, 96932220), (4, 72699165), (5, 58159332), (6, 48466110), (7, 41542380), (9, 32310740), (10, 29079666), (11, 26436060), (12, 24233055), (14, 20771190), (15, 19386444), (18, 16155370), (20, 14539833), (21, 13847460), (22, 13218030), (28, 10385595), (30, 9693222), (33, 8812020), (35, 8308476), (36, 8077685), (42, 6923730), (44, 6609015), (45, 6462148), (55, 5287212), (60, 4846611), (63, 4615820), (66, 4406010), (70, 4154238), (77, 3776580), (84, 3461865), (90, 3231074), (99, 2937340), (105, 2769492), (110, 2643606), (126, 2307910), (132, 2203005), (140, 2077119), (154, 1888290), (165, 1762404), (180, 1615537), (198, 1468670), (210, 1384746), (220, 1321803), (231, 1258860), (252, 1153955), (308, 944145), (315, 923164), (330, 881202), (385, 755316), (396, 734335), (420, 692373), (462, 629430), (495, 587468), (630, 461582), (660, 440601), (693, 419620), (770, 377658), (924, 314715), (990, 293734), (1155, 251772), (1260, 230791), (1386, 209810), (1540, 188829), (1980, 146867), (2310, 125886), (2772, 104905), (3465, 83924), (4620, 62943), (6930, 41962), (13860, 20981)]