78007210

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:630

約数の個数: 32

約数和(自身を含む): 142663680

約数和(自身を除く): 64656470

約数列:

[1, 2, 5, 10, 127, 239, 254, 257, 478, 514, 635, 1195, 1270, 1285, 2390, 2570, 30353, 32639, 60706, 61423, 65278, 122846, 151765, 163195, 303530, 307115, 326390, 614230, 7800721, 15601442, 39003605, 78007210]

約数ペア:

[(1, 78007210), (2, 39003605), (5, 15601442), (10, 7800721), (127, 614230), (239, 326390), (254, 307115), (257, 303530), (478, 163195), (514, 151765), (635, 122846), (1195, 65278), (1270, 61423), (1285, 60706), (2390, 32639), (2570, 30353)]