19998111470

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2647}}^1\times {\mathrm{24371}}^1$

素因数の和:27056

約数の個数: 32

約数和(自身を含む): 37173344256

約数和(自身を除く): 17175232786

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 2647, 5294, 13235, 24371, 26470, 48742, 82057, 121855, 164114, 243710, 410285, 755501, 820570, 1511002, 3777505, 7555010, 64510037, 129020074, 322550185, 645100370, 1999811147, 3999622294, 9999055735, 19998111470]

約数ペア:

[(1, 19998111470), (2, 9999055735), (5, 3999622294), (10, 1999811147), (31, 645100370), (62, 322550185), (155, 129020074), (310, 64510037), (2647, 7555010), (5294, 3777505), (13235, 1511002), (24371, 820570), (26470, 755501), (48742, 410285), (82057, 243710), (121855, 164114)]