138595840

素因数分解:

$2^9\times 5^1\times {\mathrm{54139}}^1$

素因数の和:54162

約数の個数: 40

約数和(自身を含む): 332311320

約数和(自身を除く): 193715480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 54139, 108278, 216556, 270695, 433112, 541390, 866224, 1082780, 1732448, 2165560, 3464896, 4331120, 6929792, 8662240, 13859584, 17324480, 27719168, 34648960, 69297920, 138595840]

約数ペア:

[(1, 138595840), (2, 69297920), (4, 34648960), (5, 27719168), (8, 17324480), (10, 13859584), (16, 8662240), (20, 6929792), (32, 4331120), (40, 3464896), (64, 2165560), (80, 1732448), (128, 1082780), (160, 866224), (256, 541390), (320, 433112), (512, 270695), (640, 216556), (1280, 108278), (2560, 54139)]