2211280

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:355

約数の個数: 40

約数和(自身を含む): 5205024

約数和(自身を除く): 2993744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 211, 262, 422, 524, 655, 844, 1048, 1055, 1310, 1688, 2096, 2110, 2620, 3376, 4220, 5240, 8440, 10480, 16880, 27641, 55282, 110564, 138205, 221128, 276410, 442256, 552820, 1105640, 2211280]

約数ペア:

[(1, 2211280), (2, 1105640), (4, 552820), (5, 442256), (8, 276410), (10, 221128), (16, 138205), (20, 110564), (40, 55282), (80, 27641), (131, 16880), (211, 10480), (262, 8440), (422, 5240), (524, 4220), (655, 3376), (844, 2620), (1048, 2110), (1055, 2096), (1310, 1688)]