638111520

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{929}}^1$

素因数の和:1009

約数の個数: 240

約数和(自身を含む): 2296962360

約数和(自身を除く): 1658850840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 53, 54, 60, 72, 80, 81, 90, 96, 106, 108, 120, 135, 144, 159, 160, 162, 180, 212, 216, 240, 265, 270, 288, 318, 324, 360, 405, 424, 432, 477, 480, 530, 540, 636, 648, 720, 795, 810, 848, 864, 929, 954, 1060, 1080, 1272, 1296, 1431, 1440, 1590, 1620, 1696, 1858, 1908, 2120, 2160, 2385, 2544, 2592, 2787, 2862, 3180, 3240, 3716, 3816, 4240, 4293, 4320, 4645, 4770, 5088, 5574, 5724, 6360, 6480, 7155, 7432, 7632, 8361, 8480, 8586, 9290, 9540, 11148, 11448, 12720, 12960, 13935, 14310, 14864, 15264, 16722, 17172, 18580, 19080, 21465, 22296, 22896, 25083, 25440, 27870, 28620, 29728, 33444, 34344, 37160, 38160, 41805, 42930, 44592, 45792, 49237, 50166, 55740, 57240, 66888, 68688, 74320, 75249, 76320, 83610, 85860, 89184, 98474, 100332, 111480, 114480, 125415, 133776, 137376, 147711, 148640, 150498, 167220, 171720, 196948, 200664, 222960, 228960, 246185, 250830, 267552, 295422, 300996, 334440, 343440, 376245, 393896, 401328, 443133, 445920, 492370, 501660, 590844, 601992, 668880, 686880, 738555, 752490, 787792, 802656, 886266, 984740, 1003320, 1181688, 1203984, 1329399, 1337760, 1477110, 1504980, 1575584, 1772532, 1969480, 2006640, 2215665, 2363376, 2407968, 2658798, 2954220, 3009960, 3545064, 3938960, 3988197, 4013280, 4431330, 4726752, 5317596, 5908440, 6019920, 6646995, 7090128, 7877920, 7976394, 8862660, 10635192, 11816880, 12039840, 13293990, 14180256, 15952788, 17725320, 19940985, 21270384, 23633760, 26587980, 31905576, 35450640, 39881970, 42540768, 53175960, 63811152, 70901280, 79763940, 106351920, 127622304, 159527880, 212703840, 319055760, 638111520]

約数ペア:

[(1, 638111520), (2, 319055760), (3, 212703840), (4, 159527880), (5, 127622304), (6, 106351920), (8, 79763940), (9, 70901280), (10, 63811152), (12, 53175960), (15, 42540768), (16, 39881970), (18, 35450640), (20, 31905576), (24, 26587980), (27, 23633760), (30, 21270384), (32, 19940985), (36, 17725320), (40, 15952788), (45, 14180256), (48, 13293990), (53, 12039840), (54, 11816880), (60, 10635192), (72, 8862660), (80, 7976394), (81, 7877920), (90, 7090128), (96, 6646995), (106, 6019920), (108, 5908440), (120, 5317596), (135, 4726752), (144, 4431330), (159, 4013280), (160, 3988197), (162, 3938960), (180, 3545064), (212, 3009960), (216, 2954220), (240, 2658798), (265, 2407968), (270, 2363376), (288, 2215665), (318, 2006640), (324, 1969480), (360, 1772532), (405, 1575584), (424, 1504980), (432, 1477110), (477, 1337760), (480, 1329399), (530, 1203984), (540, 1181688), (636, 1003320), (648, 984740), (720, 886266), (795, 802656), (810, 787792), (848, 752490), (864, 738555), (929, 686880), (954, 668880), (1060, 601992), (1080, 590844), (1272, 501660), (1296, 492370), (1431, 445920), (1440, 443133), (1590, 401328), (1620, 393896), (1696, 376245), (1858, 343440), (1908, 334440), (2120, 300996), (2160, 295422), (2385, 267552), (2544, 250830), (2592, 246185), (2787, 228960), (2862, 222960), (3180, 200664), (3240, 196948), (3716, 171720), (3816, 167220), (4240, 150498), (4293, 148640), (4320, 147711), (4645, 137376), (4770, 133776), (5088, 125415), (5574, 114480), (5724, 111480), (6360, 100332), (6480, 98474), (7155, 89184), (7432, 85860), (7632, 83610), (8361, 76320), (8480, 75249), (8586, 74320), (9290, 68688), (9540, 66888), (11148, 57240), (11448, 55740), (12720, 50166), (12960, 49237), (13935, 45792), (14310, 44592), (14864, 42930), (15264, 41805), (16722, 38160), (17172, 37160), (18580, 34344), (19080, 33444), (21465, 29728), (22296, 28620), (22896, 27870), (25083, 25440)]