777799240

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{5237}}^1$

素因数の和:5374

約数の個数: 64

約数和(自身を含む): 1810252800

約数和(自身を除く): 1032453560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 79, 94, 158, 188, 235, 316, 376, 395, 470, 632, 790, 940, 1580, 1880, 3160, 3713, 5237, 7426, 10474, 14852, 18565, 20948, 26185, 29704, 37130, 41896, 52370, 74260, 104740, 148520, 209480, 246139, 413723, 492278, 827446, 984556, 1230695, 1654892, 1969112, 2068615, 2461390, 3309784, 4137230, 4922780, 8274460, 9845560, 16548920, 19444981, 38889962, 77779924, 97224905, 155559848, 194449810, 388899620, 777799240]

約数ペア:

[(1, 777799240), (2, 388899620), (4, 194449810), (5, 155559848), (8, 97224905), (10, 77779924), (20, 38889962), (40, 19444981), (47, 16548920), (79, 9845560), (94, 8274460), (158, 4922780), (188, 4137230), (235, 3309784), (316, 2461390), (376, 2068615), (395, 1969112), (470, 1654892), (632, 1230695), (790, 984556), (940, 827446), (1580, 492278), (1880, 413723), (3160, 246139), (3713, 209480), (5237, 148520), (7426, 104740), (10474, 74260), (14852, 52370), (18565, 41896), (20948, 37130), (26185, 29704)]