20837420640

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{91009}}^1$

素因数の和:91086

約数の個数: 192

約数和(自身を含む): 74307844800

約数和(自身を除く): 53470424160

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, 90, 96, 106, 108, 120, 135, 144, 159, 160, 180, 212, 216, 240, 265, 270, 288, 318, 360, 424, 432, 477, 480, 530, 540, 636, 720, 795, 848, 864, 954, 1060, 1080, 1272, 1431, 1440, 1590, 1696, 1908, 2120, 2160, 2385, 2544, 2862, 3180, 3816, 4240, 4320, 4770, 5088, 5724, 6360, 7155, 7632, 8480, 9540, 11448, 12720, 14310, 15264, 19080, 22896, 25440, 28620, 38160, 45792, 57240, 76320, 91009, 114480, 182018, 228960, 273027, 364036, 455045, 546054, 728072, 819081, 910090, 1092108, 1365135, 1456144, 1638162, 1820180, 2184216, 2457243, 2730270, 2912288, 3276324, 3640360, 4095405, 4368432, 4823477, 4914486, 5460540, 6552648, 7280720, 8190810, 8736864, 9646954, 9828972, 10921080, 12286215, 13105296, 14470431, 14561440, 16381620, 19293908, 19657944, 21842160, 24117385, 24572430, 26210592, 28940862, 32763240, 38587816, 39315888, 43411293, 43684320, 48234770, 49144860, 57881724, 65526480, 72352155, 77175632, 78631776, 86822586, 96469540, 98289720, 115763448, 130233879, 131052960, 144704310, 154351264, 173645172, 192939080, 196579440, 217056465, 231526896, 260467758, 289408620, 347290344, 385878160, 393158880, 434112930, 463053792, 520935516, 578817240, 651169395, 694580688, 771756320, 868225860, 1041871032, 1157634480, 1302338790, 1389161376, 1736451720, 2083742064, 2315268960, 2604677580, 3472903440, 4167484128, 5209355160, 6945806880, 10418710320, 20837420640]

約数ペア:

[(1, 20837420640), (2, 10418710320), (3, 6945806880), (4, 5209355160), (5, 4167484128), (6, 3472903440), (8, 2604677580), (9, 2315268960), (10, 2083742064), (12, 1736451720), (15, 1389161376), (16, 1302338790), (18, 1157634480), (20, 1041871032), (24, 868225860), (27, 771756320), (30, 694580688), (32, 651169395), (36, 578817240), (40, 520935516), (45, 463053792), (48, 434112930), (53, 393158880), (54, 385878160), (60, 347290344), (72, 289408620), (80, 260467758), (90, 231526896), (96, 217056465), (106, 196579440), (108, 192939080), (120, 173645172), (135, 154351264), (144, 144704310), (159, 131052960), (160, 130233879), (180, 115763448), (212, 98289720), (216, 96469540), (240, 86822586), (265, 78631776), (270, 77175632), (288, 72352155), (318, 65526480), (360, 57881724), (424, 49144860), (432, 48234770), (477, 43684320), (480, 43411293), (530, 39315888), (540, 38587816), (636, 32763240), (720, 28940862), (795, 26210592), (848, 24572430), (864, 24117385), (954, 21842160), (1060, 19657944), (1080, 19293908), (1272, 16381620), (1431, 14561440), (1440, 14470431), (1590, 13105296), (1696, 12286215), (1908, 10921080), (2120, 9828972), (2160, 9646954), (2385, 8736864), (2544, 8190810), (2862, 7280720), (3180, 6552648), (3816, 5460540), (4240, 4914486), (4320, 4823477), (4770, 4368432), (5088, 4095405), (5724, 3640360), (6360, 3276324), (7155, 2912288), (7632, 2730270), (8480, 2457243), (9540, 2184216), (11448, 1820180), (12720, 1638162), (14310, 1456144), (15264, 1365135), (19080, 1092108), (22896, 910090), (25440, 819081), (28620, 728072), (38160, 546054), (45792, 455045), (57240, 364036), (76320, 273027), (91009, 228960), (114480, 182018)]