28657434

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1$

素因数の和:415

約数の個数: 64

約数和(自身を含む): 66245760

約数和(自身を除く): 37588326

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 61, 78, 114, 122, 183, 247, 317, 366, 494, 634, 741, 793, 951, 1159, 1482, 1586, 1902, 2318, 2379, 3477, 4121, 4758, 6023, 6954, 8242, 12046, 12363, 15067, 18069, 19337, 24726, 30134, 36138, 38674, 45201, 58011, 78299, 90402, 116022, 156598, 234897, 251381, 367403, 469794, 502762, 734806, 754143, 1102209, 1508286, 2204418, 4776239, 9552478, 14328717, 28657434]

約数ペア:

[(1, 28657434), (2, 14328717), (3, 9552478), (6, 4776239), (13, 2204418), (19, 1508286), (26, 1102209), (38, 754143), (39, 734806), (57, 502762), (61, 469794), (78, 367403), (114, 251381), (122, 234897), (183, 156598), (247, 116022), (317, 90402), (366, 78299), (494, 58011), (634, 45201), (741, 38674), (793, 36138), (951, 30134), (1159, 24726), (1482, 19337), (1586, 18069), (1902, 15067), (2318, 12363), (2379, 12046), (3477, 8242), (4121, 6954), (4758, 6023)]