20399477584

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{1559}}^1$

素因数の和:1689

約数の個数: 120

約数和(自身を含む): 43795589760

約数和(自身を除く): 23396112176

約数列:

[1, 2, 4, 8, 16, 23, 31, 37, 46, 62, 74, 92, 124, 148, 184, 248, 296, 368, 496, 592, 713, 851, 961, 1147, 1426, 1559, 1702, 1922, 2294, 2852, 3118, 3404, 3844, 4588, 5704, 6236, 6808, 7688, 9176, 11408, 12472, 13616, 15376, 18352, 22103, 24944, 26381, 35557, 35857, 44206, 48329, 52762, 57683, 71114, 71714, 88412, 96658, 105524, 115366, 142228, 143428, 176824, 193316, 211048, 230732, 284456, 286856, 353648, 386632, 422096, 461464, 568912, 573712, 773264, 817811, 922928, 1111567, 1326709, 1498199, 1635622, 1788173, 2223134, 2653418, 2996398, 3271244, 3576346, 4446268, 5306836, 5992796, 6542488, 7152692, 8892536, 10613672, 11985592, 13084976, 14305384, 17785072, 21227344, 23971184, 28610768, 34458577, 41127979, 55433363, 68917154, 82255958, 110866726, 137834308, 164511916, 221733452, 275668616, 329023832, 443466904, 551337232, 658047664, 886933808, 1274967349, 2549934698, 5099869396, 10199738792, 20399477584]

約数ペア:

[(1, 20399477584), (2, 10199738792), (4, 5099869396), (8, 2549934698), (16, 1274967349), (23, 886933808), (31, 658047664), (37, 551337232), (46, 443466904), (62, 329023832), (74, 275668616), (92, 221733452), (124, 164511916), (148, 137834308), (184, 110866726), (248, 82255958), (296, 68917154), (368, 55433363), (496, 41127979), (592, 34458577), (713, 28610768), (851, 23971184), (961, 21227344), (1147, 17785072), (1426, 14305384), (1559, 13084976), (1702, 11985592), (1922, 10613672), (2294, 8892536), (2852, 7152692), (3118, 6542488), (3404, 5992796), (3844, 5306836), (4588, 4446268), (5704, 3576346), (6236, 3271244), (6808, 2996398), (7688, 2653418), (9176, 2223134), (11408, 1788173), (12472, 1635622), (13616, 1498199), (15376, 1326709), (18352, 1111567), (22103, 922928), (24944, 817811), (26381, 773264), (35557, 573712), (35857, 568912), (44206, 461464), (48329, 422096), (52762, 386632), (57683, 353648), (71114, 286856), (71714, 284456), (88412, 230732), (96658, 211048), (105524, 193316), (115366, 176824), (142228, 143428)]