78514289

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:333

約数の個数: 32

約数和(自身を含む): 98918400

約数和(自身を除く): 20404111

約数列:

[1, 7, 19, 31, 133, 137, 139, 217, 589, 959, 973, 2603, 2641, 4123, 4247, 4309, 18221, 18487, 19043, 29729, 30163, 80693, 81871, 133301, 361817, 564851, 573097, 590333, 2532719, 4132331, 11216327, 78514289]

約数ペア:

[(1, 78514289), (7, 11216327), (19, 4132331), (31, 2532719), (133, 590333), (137, 573097), (139, 564851), (217, 361817), (589, 133301), (959, 81871), (973, 80693), (2603, 30163), (2641, 29729), (4123, 19043), (4247, 18487), (4309, 18221)]