19710260

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7523}}^1$

素因数の和:7663

約数の個数: 24

約数和(自身を含む): 41713056

約数和(自身を除く): 22002796

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 7523, 15046, 30092, 37615, 75230, 150460, 985513, 1971026, 3942052, 4927565, 9855130, 19710260]

約数ペア:

[(1, 19710260), (2, 9855130), (4, 4927565), (5, 3942052), (10, 1971026), (20, 985513), (131, 150460), (262, 75230), (524, 37615), (655, 30092), (1310, 15046), (2620, 7523)]