18447730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1249}}^1$

素因数の和:1474

約数の個数: 32

約数和(自身を含む): 38160000

約数和(自身を除く): 19712270

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 211, 422, 1055, 1249, 1477, 2110, 2498, 2954, 6245, 7385, 8743, 12490, 14770, 17486, 43715, 87430, 263539, 527078, 1317695, 1844773, 2635390, 3689546, 9223865, 18447730]

約数ペア:

[(1, 18447730), (2, 9223865), (5, 3689546), (7, 2635390), (10, 1844773), (14, 1317695), (35, 527078), (70, 263539), (211, 87430), (422, 43715), (1055, 17486), (1249, 14770), (1477, 12490), (2110, 8743), (2498, 7385), (2954, 6245)]