156909860

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1\times {\mathrm{431}}^1$

素因数の和:716

約数の個数: 48

約数和(自身を含む): 335301120

約数和(自身を除く): 178391260

約数列:

[1, 2, 4, 5, 10, 20, 109, 167, 218, 334, 431, 436, 545, 668, 835, 862, 1090, 1670, 1724, 2155, 2180, 3340, 4310, 8620, 18203, 36406, 46979, 71977, 72812, 91015, 93958, 143954, 182030, 187916, 234895, 287908, 359885, 364060, 469790, 719770, 939580, 1439540, 7845493, 15690986, 31381972, 39227465, 78454930, 156909860]

約数ペア:

[(1, 156909860), (2, 78454930), (4, 39227465), (5, 31381972), (10, 15690986), (20, 7845493), (109, 1439540), (167, 939580), (218, 719770), (334, 469790), (431, 364060), (436, 359885), (545, 287908), (668, 234895), (835, 187916), (862, 182030), (1090, 143954), (1670, 93958), (1724, 91015), (2155, 72812), (2180, 71977), (3340, 46979), (4310, 36406), (8620, 18203)]