80054240

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{10211}}^1$

素因数の和:10240

約数の個数: 72

約数和(自身を含む): 220027752

約数和(自身を除く): 139973512

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 10211, 20422, 40844, 51055, 71477, 81688, 102110, 142954, 163376, 204220, 285908, 326752, 357385, 408440, 500339, 571816, 714770, 816880, 1000678, 1143632, 1429540, 1633760, 2001356, 2287264, 2501695, 2859080, 4002712, 5003390, 5718160, 8005424, 10006780, 11436320, 16010848, 20013560, 40027120, 80054240]

約数ペア:

[(1, 80054240), (2, 40027120), (4, 20013560), (5, 16010848), (7, 11436320), (8, 10006780), (10, 8005424), (14, 5718160), (16, 5003390), (20, 4002712), (28, 2859080), (32, 2501695), (35, 2287264), (40, 2001356), (49, 1633760), (56, 1429540), (70, 1143632), (80, 1000678), (98, 816880), (112, 714770), (140, 571816), (160, 500339), (196, 408440), (224, 357385), (245, 326752), (280, 285908), (392, 204220), (490, 163376), (560, 142954), (784, 102110), (980, 81688), (1120, 71477), (1568, 51055), (1960, 40844), (3920, 20422), (7840, 10211)]