77981918

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{1319}}^1$

素因数の和:1472

約数の個数: 32

約数和(自身を含む): 138378240

約数和(自身を除く): 60396322

約数列:

[1, 2, 7, 14, 41, 82, 103, 206, 287, 574, 721, 1319, 1442, 2638, 4223, 8446, 9233, 18466, 29561, 54079, 59122, 108158, 135857, 271714, 378553, 757106, 950999, 1901998, 5570137, 11140274, 38990959, 77981918]

約数ペア:

[(1, 77981918), (2, 38990959), (7, 11140274), (14, 5570137), (41, 1901998), (82, 950999), (103, 757106), (206, 378553), (287, 271714), (574, 135857), (721, 108158), (1319, 59122), (1442, 54079), (2638, 29561), (4223, 18466), (8446, 9233)]