138435620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{1171}}^1$

素因数の和:1460

約数の個数: 48

約数和(自身を含む): 304795008

約数和(自身を除く): 166359388

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 257, 460, 514, 1028, 1171, 1285, 2342, 2570, 4684, 5140, 5855, 5911, 11710, 11822, 23420, 23644, 26933, 29555, 53866, 59110, 107732, 118220, 134665, 269330, 300947, 538660, 601894, 1203788, 1504735, 3009470, 6018940, 6921781, 13843562, 27687124, 34608905, 69217810, 138435620]

約数ペア:

[(1, 138435620), (2, 69217810), (4, 34608905), (5, 27687124), (10, 13843562), (20, 6921781), (23, 6018940), (46, 3009470), (92, 1504735), (115, 1203788), (230, 601894), (257, 538660), (460, 300947), (514, 269330), (1028, 134665), (1171, 118220), (1285, 107732), (2342, 59110), (2570, 53866), (4684, 29555), (5140, 26933), (5855, 23644), (5911, 23420), (11710, 11822)]