68520520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{32321}}^1$

素因数の和:32385

約数の個数: 32

約数和(自身を含む): 157084920

約数和(自身を除く): 88564400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 32321, 64642, 129284, 161605, 258568, 323210, 646420, 1292840, 1713013, 3426026, 6852052, 8565065, 13704104, 17130130, 34260260, 68520520]

約数ペア:

[(1, 68520520), (2, 34260260), (4, 17130130), (5, 13704104), (8, 8565065), (10, 6852052), (20, 3426026), (40, 1713013), (53, 1292840), (106, 646420), (212, 323210), (265, 258568), (424, 161605), (530, 129284), (1060, 64642), (2120, 32321)]