201991408

素因数分解:

$2^4\times {\mathrm{659}}^1\times {\mathrm{19157}}^1$

素因数の和:19824

約数の個数: 20

約数和(自身を含む): 391972680

約数和(自身を除く): 189981272

約数列:

[1, 2, 4, 8, 16, 659, 1318, 2636, 5272, 10544, 19157, 38314, 76628, 153256, 306512, 12624463, 25248926, 50497852, 100995704, 201991408]

約数ペア:

[(1, 201991408), (2, 100995704), (4, 50497852), (8, 25248926), (16, 12624463), (659, 306512), (1318, 153256), (2636, 76628), (5272, 38314), (10544, 19157)]