2009905179905

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{745529}}^1$

素因数の和:745778

約数の個数: 64

約数和(自身を含む): 3060943395840

約数和(自身を除く): 1051038215935

約数列:

[1, 5, 7, 17, 23, 35, 85, 115, 119, 161, 197, 391, 595, 805, 985, 1379, 1955, 2737, 3349, 4531, 6895, 13685, 16745, 22655, 23443, 31717, 77027, 117215, 158585, 385135, 539189, 745529, 2695945, 3727645, 5218703, 12673993, 17147167, 26093515, 63369965, 85735835, 88717951, 120030169, 146869213, 291501839, 443589755, 600150845, 734346065, 1028084491, 1457509195, 2040512873, 2496776621, 3377991899, 5140422455, 10202564365, 12483883105, 16889959495, 17477436347, 23645943293, 57425862283, 87387181735, 118229716465, 287129311415, 401981035981, 2009905179905]

約数ペア:

[(1, 2009905179905), (5, 401981035981), (7, 287129311415), (17, 118229716465), (23, 87387181735), (35, 57425862283), (85, 23645943293), (115, 17477436347), (119, 16889959495), (161, 12483883105), (197, 10202564365), (391, 5140422455), (595, 3377991899), (805, 2496776621), (985, 2040512873), (1379, 1457509195), (1955, 1028084491), (2737, 734346065), (3349, 600150845), (4531, 443589755), (6895, 291501839), (13685, 146869213), (16745, 120030169), (22655, 88717951), (23443, 85735835), (31717, 63369965), (77027, 26093515), (117215, 17147167), (158585, 12673993), (385135, 5218703), (539189, 3727645), (745529, 2695945)]