204390915

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{47149}}^1$

素因数の和:47191

約数の個数: 24

約数和(自身を含む): 347401200

約数和(自身を除く): 143010285

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 289, 867, 1445, 4335, 47149, 141447, 235745, 707235, 801533, 2404599, 4007665, 12022995, 13626061, 40878183, 68130305, 204390915]

約数ペア:

[(1, 204390915), (3, 68130305), (5, 40878183), (15, 13626061), (17, 12022995), (51, 4007665), (85, 2404599), (255, 801533), (289, 707235), (867, 235745), (1445, 141447), (4335, 47149)]