16978021205

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{401}}^1\times {\mathrm{1061}}^1$

素因数の和:1837

約数の個数: 32

約数和(自身を含む): 21394015488

約数和(自身を除く): 4415994283

約数列:

[1, 5, 23, 115, 347, 401, 1061, 1735, 2005, 5305, 7981, 9223, 24403, 39905, 46115, 122015, 139147, 368167, 425461, 695735, 1840835, 2127305, 3200381, 8467841, 9785603, 16001905, 42339205, 48928015, 147634967, 738174835, 3395604241, 16978021205]

約数ペア:

[(1, 16978021205), (5, 3395604241), (23, 738174835), (115, 147634967), (347, 48928015), (401, 42339205), (1061, 16001905), (1735, 9785603), (2005, 8467841), (5305, 3200381), (7981, 2127305), (9223, 1840835), (24403, 695735), (39905, 425461), (46115, 368167), (122015, 139147)]