19648690

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{283}}^1$

素因数の和:474

約数の個数: 32

約数和(自身を含む): 36438336

約数和(自身を除く): 16789646

約数列:

[1, 2, 5, 10, 53, 106, 131, 262, 265, 283, 530, 566, 655, 1310, 1415, 2830, 6943, 13886, 14999, 29998, 34715, 37073, 69430, 74146, 74995, 149990, 185365, 370730, 1964869, 3929738, 9824345, 19648690]

約数ペア:

[(1, 19648690), (2, 9824345), (5, 3929738), (10, 1964869), (53, 370730), (106, 185365), (131, 149990), (262, 74995), (265, 74146), (283, 69430), (530, 37073), (566, 34715), (655, 29998), (1310, 14999), (1415, 13886), (2830, 6943)]