27999960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{353}}^1\times {\mathrm{661}}^1$

素因数の和:1028

約数の個数: 64

約数和(自身を含む): 84365280

約数和(自身を除く): 56365320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 353, 661, 706, 1059, 1322, 1412, 1765, 1983, 2118, 2644, 2824, 3305, 3530, 3966, 4236, 5288, 5295, 6610, 7060, 7932, 8472, 9915, 10590, 13220, 14120, 15864, 19830, 21180, 26440, 39660, 42360, 79320, 233333, 466666, 699999, 933332, 1166665, 1399998, 1866664, 2333330, 2799996, 3499995, 4666660, 5599992, 6999990, 9333320, 13999980, 27999960]

約数ペア:

[(1, 27999960), (2, 13999980), (3, 9333320), (4, 6999990), (5, 5599992), (6, 4666660), (8, 3499995), (10, 2799996), (12, 2333330), (15, 1866664), (20, 1399998), (24, 1166665), (30, 933332), (40, 699999), (60, 466666), (120, 233333), (353, 79320), (661, 42360), (706, 39660), (1059, 26440), (1322, 21180), (1412, 19830), (1765, 15864), (1983, 14120), (2118, 13220), (2644, 10590), (2824, 9915), (3305, 8472), (3530, 7932), (3966, 7060), (4236, 6610), (5288, 5295)]