163458440

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{29399}}^1$

素因数の和:29549

約数の個数: 32

約数和(自身を含む): 370440000

約数和(自身を除く): 206981560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 29399, 58798, 117596, 146995, 235192, 293990, 587980, 1175960, 4086461, 8172922, 16345844, 20432305, 32691688, 40864610, 81729220, 163458440]

約数ペア:

[(1, 163458440), (2, 81729220), (4, 40864610), (5, 32691688), (8, 20432305), (10, 16345844), (20, 8172922), (40, 4086461), (139, 1175960), (278, 587980), (556, 293990), (695, 235192), (1112, 146995), (1390, 117596), (2780, 58798), (5560, 29399)]