77782420

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1\times {\mathrm{271}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 166699008

約数和(自身を除く): 88916588

約数列:

[1, 2, 4, 5, 10, 20, 113, 127, 226, 254, 271, 452, 508, 542, 565, 635, 1084, 1130, 1270, 1355, 2260, 2540, 2710, 5420, 14351, 28702, 30623, 34417, 57404, 61246, 68834, 71755, 122492, 137668, 143510, 153115, 172085, 287020, 306230, 344170, 612460, 688340, 3889121, 7778242, 15556484, 19445605, 38891210, 77782420]

約数ペア:

[(1, 77782420), (2, 38891210), (4, 19445605), (5, 15556484), (10, 7778242), (20, 3889121), (113, 688340), (127, 612460), (226, 344170), (254, 306230), (271, 287020), (452, 172085), (508, 153115), (542, 143510), (565, 137668), (635, 122492), (1084, 71755), (1130, 68834), (1270, 61246), (1355, 57404), (2260, 34417), (2540, 30623), (2710, 28702), (5420, 14351)]