51338840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1013}}^1$

素因数の和:1212

約数の個数: 64

約数和(自身を含む): 132874560

約数和(自身を除く): 81535720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 181, 280, 362, 724, 905, 1013, 1267, 1448, 1810, 2026, 2534, 3620, 4052, 5065, 5068, 6335, 7091, 7240, 8104, 10130, 10136, 12670, 14182, 20260, 25340, 28364, 35455, 40520, 50680, 56728, 70910, 141820, 183353, 283640, 366706, 733412, 916765, 1283471, 1466824, 1833530, 2566942, 3667060, 5133884, 6417355, 7334120, 10267768, 12834710, 25669420, 51338840]

約数ペア:

[(1, 51338840), (2, 25669420), (4, 12834710), (5, 10267768), (7, 7334120), (8, 6417355), (10, 5133884), (14, 3667060), (20, 2566942), (28, 1833530), (35, 1466824), (40, 1283471), (56, 916765), (70, 733412), (140, 366706), (181, 283640), (280, 183353), (362, 141820), (724, 70910), (905, 56728), (1013, 50680), (1267, 40520), (1448, 35455), (1810, 28364), (2026, 25340), (2534, 20260), (3620, 14182), (4052, 12670), (5065, 10136), (5068, 10130), (6335, 8104), (7091, 7240)]