686205

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:67

約数の個数: 64

約数和(自身を含む): 1451520

約数和(自身を除く): 765315

約数列:

[1, 3, 5, 9, 13, 15, 17, 23, 27, 39, 45, 51, 65, 69, 85, 115, 117, 135, 153, 195, 207, 221, 255, 299, 345, 351, 391, 459, 585, 621, 663, 765, 897, 1035, 1105, 1173, 1495, 1755, 1955, 1989, 2295, 2691, 3105, 3315, 3519, 4485, 5083, 5865, 5967, 8073, 9945, 10557, 13455, 15249, 17595, 25415, 29835, 40365, 45747, 52785, 76245, 137241, 228735, 686205]

約数ペア:

[(1, 686205), (3, 228735), (5, 137241), (9, 76245), (13, 52785), (15, 45747), (17, 40365), (23, 29835), (27, 25415), (39, 17595), (45, 15249), (51, 13455), (65, 10557), (69, 9945), (85, 8073), (115, 5967), (117, 5865), (135, 5083), (153, 4485), (195, 3519), (207, 3315), (221, 3105), (255, 2691), (299, 2295), (345, 1989), (351, 1955), (391, 1755), (459, 1495), (585, 1173), (621, 1105), (663, 1035), (765, 897)]