747804925

素因数分解:

$5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{241}}^1$

素因数の和:431

約数の個数: 72

約数和(自身を含む): 1154557800

約数和(自身を除く): 406752875

約数列:

[1, 5, 7, 17, 25, 35, 49, 85, 119, 149, 175, 241, 245, 425, 595, 745, 833, 1043, 1205, 1225, 1687, 2533, 2975, 3725, 4097, 4165, 5215, 6025, 7301, 8435, 11809, 12665, 17731, 20485, 20825, 26075, 28679, 35909, 36505, 42175, 59045, 63325, 88655, 102425, 124117, 143395, 179545, 182525, 200753, 251363, 295225, 443275, 610453, 620585, 716975, 897725, 1003765, 1256815, 1759541, 3052265, 3102925, 4273171, 5018825, 6284075, 8797705, 15261325, 21365855, 29912197, 43988525, 106829275, 149560985, 747804925]

約数ペア:

[(1, 747804925), (5, 149560985), (7, 106829275), (17, 43988525), (25, 29912197), (35, 21365855), (49, 15261325), (85, 8797705), (119, 6284075), (149, 5018825), (175, 4273171), (241, 3102925), (245, 3052265), (425, 1759541), (595, 1256815), (745, 1003765), (833, 897725), (1043, 716975), (1205, 620585), (1225, 610453), (1687, 443275), (2533, 295225), (2975, 251363), (3725, 200753), (4097, 182525), (4165, 179545), (5215, 143395), (6025, 124117), (7301, 102425), (8435, 88655), (11809, 63325), (12665, 59045), (17731, 42175), (20485, 36505), (20825, 35909), (26075, 28679)]