201216784

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{405679}}^1$

素因数の和:405718

約数の個数: 20

約数和(自身を含む): 402434560

約数和(自身を除く): 201217776

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 405679, 811358, 1622716, 3245432, 6490864, 12576049, 25152098, 50304196, 100608392, 201216784]

約数ペア:

[(1, 201216784), (2, 100608392), (4, 50304196), (8, 25152098), (16, 12576049), (31, 6490864), (62, 3245432), (124, 1622716), (248, 811358), (496, 405679)]