20781329868

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{44449}}^1$

素因数の和:44518

約数の個数: 144

約数和(自身を含む): 60253575200

約数和(自身を除く): 39472245332

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 37, 39, 52, 54, 74, 78, 81, 108, 111, 117, 148, 156, 162, 222, 234, 243, 324, 333, 351, 444, 468, 481, 486, 666, 702, 962, 972, 999, 1053, 1332, 1404, 1443, 1924, 1998, 2106, 2886, 2997, 3159, 3996, 4212, 4329, 5772, 5994, 6318, 8658, 8991, 11988, 12636, 12987, 17316, 17982, 25974, 35964, 38961, 44449, 51948, 77922, 88898, 116883, 133347, 155844, 177796, 233766, 266694, 400041, 467532, 533388, 577837, 800082, 1155674, 1200123, 1600164, 1644613, 1733511, 2311348, 2400246, 3289226, 3467022, 3600369, 4800492, 4933839, 5200533, 6578452, 6934044, 7200738, 9867678, 10401066, 10801107, 14401476, 14801517, 15601599, 19735356, 20802132, 21379969, 21602214, 29603034, 31203198, 42759938, 43204428, 44404551, 46804797, 59206068, 62406396, 64139907, 85519876, 88809102, 93609594, 128279814, 133213653, 140414391, 177618204, 187219188, 192419721, 256559628, 266427306, 280828782, 384839442, 399640959, 532854612, 561657564, 577259163, 769678884, 799281918, 1154518326, 1598563836, 1731777489, 2309036652, 3463554978, 5195332467, 6927109956, 10390664934, 20781329868]

約数ペア:

[(1, 20781329868), (2, 10390664934), (3, 6927109956), (4, 5195332467), (6, 3463554978), (9, 2309036652), (12, 1731777489), (13, 1598563836), (18, 1154518326), (26, 799281918), (27, 769678884), (36, 577259163), (37, 561657564), (39, 532854612), (52, 399640959), (54, 384839442), (74, 280828782), (78, 266427306), (81, 256559628), (108, 192419721), (111, 187219188), (117, 177618204), (148, 140414391), (156, 133213653), (162, 128279814), (222, 93609594), (234, 88809102), (243, 85519876), (324, 64139907), (333, 62406396), (351, 59206068), (444, 46804797), (468, 44404551), (481, 43204428), (486, 42759938), (666, 31203198), (702, 29603034), (962, 21602214), (972, 21379969), (999, 20802132), (1053, 19735356), (1332, 15601599), (1404, 14801517), (1443, 14401476), (1924, 10801107), (1998, 10401066), (2106, 9867678), (2886, 7200738), (2997, 6934044), (3159, 6578452), (3996, 5200533), (4212, 4933839), (4329, 4800492), (5772, 3600369), (5994, 3467022), (6318, 3289226), (8658, 2400246), (8991, 2311348), (11988, 1733511), (12636, 1644613), (12987, 1600164), (17316, 1200123), (17982, 1155674), (25974, 800082), (35964, 577837), (38961, 533388), (44449, 467532), (51948, 400041), (77922, 266694), (88898, 233766), (116883, 177796), (133347, 155844)]