168781185

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{293}}^1$

素因数の和:575

約数の個数: 64

約数和(自身を含む): 320060160

約数和(自身を除く): 151278975

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 251, 255, 293, 459, 753, 765, 879, 1255, 1465, 2259, 2295, 2637, 3765, 4267, 4395, 4981, 6777, 7911, 11295, 12801, 13185, 14943, 21335, 24905, 33885, 38403, 39555, 44829, 64005, 73543, 74715, 115209, 134487, 192015, 220629, 224145, 367715, 576045, 661887, 672435, 1103145, 1250231, 1985661, 3309435, 3750693, 6251155, 9928305, 11252079, 18753465, 33756237, 56260395, 168781185]

約数ペア:

[(1, 168781185), (3, 56260395), (5, 33756237), (9, 18753465), (15, 11252079), (17, 9928305), (27, 6251155), (45, 3750693), (51, 3309435), (85, 1985661), (135, 1250231), (153, 1103145), (251, 672435), (255, 661887), (293, 576045), (459, 367715), (753, 224145), (765, 220629), (879, 192015), (1255, 134487), (1465, 115209), (2259, 74715), (2295, 73543), (2637, 64005), (3765, 44829), (4267, 39555), (4395, 38403), (4981, 33885), (6777, 24905), (7911, 21335), (11295, 14943), (12801, 13185)]