198346240

素因数分解:

$2^9\times 5^1\times {\mathrm{77479}}^1$

素因数の和:77502

約数の個数: 40

約数和(自身を含む): 475572240

約数和(自身を除く): 277226000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 77479, 154958, 309916, 387395, 619832, 774790, 1239664, 1549580, 2479328, 3099160, 4958656, 6198320, 9917312, 12396640, 19834624, 24793280, 39669248, 49586560, 99173120, 198346240]

約数ペア:

[(1, 198346240), (2, 99173120), (4, 49586560), (5, 39669248), (8, 24793280), (10, 19834624), (16, 12396640), (20, 9917312), (32, 6198320), (40, 4958656), (64, 3099160), (80, 2479328), (128, 1549580), (160, 1239664), (256, 774790), (320, 619832), (512, 387395), (640, 309916), (1280, 154958), (2560, 77479)]