215698480

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{26177}}^1$

素因数の和:26293

約数の個数: 40

約数和(自身を含む): 506387232

約数和(自身を除く): 290688752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 26177, 52354, 104708, 130885, 209416, 261770, 418832, 523540, 1047080, 2094160, 2696231, 5392462, 10784924, 13481155, 21569848, 26962310, 43139696, 53924620, 107849240, 215698480]

約数ペア:

[(1, 215698480), (2, 107849240), (4, 53924620), (5, 43139696), (8, 26962310), (10, 21569848), (16, 13481155), (20, 10784924), (40, 5392462), (80, 2696231), (103, 2094160), (206, 1047080), (412, 523540), (515, 418832), (824, 261770), (1030, 209416), (1648, 130885), (2060, 104708), (4120, 52354), (8240, 26177)]