208031390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{2591}}^1$

素因数の和:2673

約数の個数: 64

約数和(自身を含む): 453869568

約数和(自身を除く): 245838178

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 37, 62, 70, 74, 155, 185, 217, 259, 310, 370, 434, 518, 1085, 1147, 1295, 2170, 2294, 2590, 2591, 5182, 5735, 8029, 11470, 12955, 16058, 18137, 25910, 36274, 40145, 80290, 80321, 90685, 95867, 160642, 181370, 191734, 401605, 479335, 562247, 671069, 803210, 958670, 1124494, 1342138, 2811235, 2971877, 3355345, 5622470, 5943754, 6710690, 14859385, 20803139, 29718770, 41606278, 104015695, 208031390]

約数ペア:

[(1, 208031390), (2, 104015695), (5, 41606278), (7, 29718770), (10, 20803139), (14, 14859385), (31, 6710690), (35, 5943754), (37, 5622470), (62, 3355345), (70, 2971877), (74, 2811235), (155, 1342138), (185, 1124494), (217, 958670), (259, 803210), (310, 671069), (370, 562247), (434, 479335), (518, 401605), (1085, 191734), (1147, 181370), (1295, 160642), (2170, 95867), (2294, 90685), (2590, 80321), (2591, 80290), (5182, 40145), (5735, 36274), (8029, 25910), (11470, 18137), (12955, 16058)]