20750446720

素因数分解:

$2^7\times 5^1\times {\mathrm{67}}^1\times {\mathrm{277}}^1\times {\mathrm{1747}}^1$

素因数の和:2110

約数の個数: 128

約数和(自身を含む): 50557613760

約数和(自身を除く): 29807167040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 268, 277, 320, 335, 536, 554, 640, 670, 1072, 1108, 1340, 1385, 1747, 2144, 2216, 2680, 2770, 3494, 4288, 4432, 5360, 5540, 6988, 8576, 8735, 8864, 10720, 11080, 13976, 17470, 17728, 18559, 21440, 22160, 27952, 34940, 35456, 37118, 42880, 44320, 55904, 69880, 74236, 88640, 92795, 111808, 117049, 139760, 148472, 177280, 185590, 223616, 234098, 279520, 296944, 371180, 468196, 483919, 559040, 585245, 593888, 742360, 936392, 967838, 1118080, 1170490, 1187776, 1484720, 1872784, 1935676, 2340980, 2375552, 2419595, 2969440, 3745568, 3871352, 4681960, 4839190, 5938880, 7491136, 7742704, 9363920, 9678380, 11877760, 14982272, 15485408, 18727840, 19356760, 30970816, 32422573, 37455680, 38713520, 61941632, 64845146, 74911360, 77427040, 129690292, 154854080, 162112865, 259380584, 309708160, 324225730, 518761168, 648451460, 1037522336, 1296902920, 2075044672, 2593805840, 4150089344, 5187611680, 10375223360, 20750446720]

約数ペア:

[(1, 20750446720), (2, 10375223360), (4, 5187611680), (5, 4150089344), (8, 2593805840), (10, 2075044672), (16, 1296902920), (20, 1037522336), (32, 648451460), (40, 518761168), (64, 324225730), (67, 309708160), (80, 259380584), (128, 162112865), (134, 154854080), (160, 129690292), (268, 77427040), (277, 74911360), (320, 64845146), (335, 61941632), (536, 38713520), (554, 37455680), (640, 32422573), (670, 30970816), (1072, 19356760), (1108, 18727840), (1340, 15485408), (1385, 14982272), (1747, 11877760), (2144, 9678380), (2216, 9363920), (2680, 7742704), (2770, 7491136), (3494, 5938880), (4288, 4839190), (4432, 4681960), (5360, 3871352), (5540, 3745568), (6988, 2969440), (8576, 2419595), (8735, 2375552), (8864, 2340980), (10720, 1935676), (11080, 1872784), (13976, 1484720), (17470, 1187776), (17728, 1170490), (18559, 1118080), (21440, 967838), (22160, 936392), (27952, 742360), (34940, 593888), (35456, 585245), (37118, 559040), (42880, 483919), (44320, 468196), (55904, 371180), (69880, 296944), (74236, 279520), (88640, 234098), (92795, 223616), (111808, 185590), (117049, 177280), (139760, 148472)]