28671855

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2719}}^1$

素因数の和:2783

約数の個数: 32

約数和(自身を含む): 49612800

約数和(自身を除く): 20940945

約数列:

[1, 3, 5, 15, 19, 37, 57, 95, 111, 185, 285, 555, 703, 2109, 2719, 3515, 8157, 10545, 13595, 40785, 51661, 100603, 154983, 258305, 301809, 503015, 774915, 1509045, 1911457, 5734371, 9557285, 28671855]

約数ペア:

[(1, 28671855), (3, 9557285), (5, 5734371), (15, 1911457), (19, 1509045), (37, 774915), (57, 503015), (95, 301809), (111, 258305), (185, 154983), (285, 100603), (555, 51661), (703, 40785), (2109, 13595), (2719, 10545), (3515, 8157)]