640368496

素因数分解:

$2^4\times {\mathrm{173}}^1\times {\mathrm{231347}}^1$

素因数の和:231528

約数の個数: 20

約数和(自身を含む): 1247891112

約数和(自身を除く): 607522616

約数列:

[1, 2, 4, 8, 16, 173, 346, 692, 1384, 2768, 231347, 462694, 925388, 1850776, 3701552, 40023031, 80046062, 160092124, 320184248, 640368496]

約数ペア:

[(1, 640368496), (2, 320184248), (4, 160092124), (8, 80046062), (16, 40023031), (173, 3701552), (346, 1850776), (692, 925388), (1384, 462694), (2768, 231347)]