8418280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16189}}^1$

素因数の和:16213

約数の個数: 32

約数和(自身を含む): 20399400

約数和(自身を除く): 11981120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 16189, 32378, 64756, 80945, 129512, 161890, 210457, 323780, 420914, 647560, 841828, 1052285, 1683656, 2104570, 4209140, 8418280]

約数ペア:

[(1, 8418280), (2, 4209140), (4, 2104570), (5, 1683656), (8, 1052285), (10, 841828), (13, 647560), (20, 420914), (26, 323780), (40, 210457), (52, 161890), (65, 129512), (104, 80945), (130, 64756), (260, 32378), (520, 16189)]