66439975

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 100120576

約数和(自身を除く): 33680601

約数列:

[1, 5, 7, 25, 31, 35, 37, 155, 175, 185, 217, 259, 331, 775, 925, 1085, 1147, 1295, 1655, 2317, 5425, 5735, 6475, 8029, 8275, 10261, 11585, 12247, 28675, 40145, 51305, 57925, 61235, 71827, 85729, 200725, 256525, 306175, 359135, 379657, 428645, 1795675, 1898285, 2143225, 2657599, 9491425, 13287995, 66439975]

約数ペア:

[(1, 66439975), (5, 13287995), (7, 9491425), (25, 2657599), (31, 2143225), (35, 1898285), (37, 1795675), (155, 428645), (175, 379657), (185, 359135), (217, 306175), (259, 256525), (331, 200725), (775, 85729), (925, 71827), (1085, 61235), (1147, 57925), (1295, 51305), (1655, 40145), (2317, 28675), (5425, 12247), (5735, 11585), (6475, 10261), (8029, 8275)]