156640336

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{238781}}^1$

素因数の和:238830

約数の個数: 20

約数和(自身を含む): 310894164

約数和(自身を除く): 154253828

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 238781, 477562, 955124, 1910248, 3820496, 9790021, 19580042, 39160084, 78320168, 156640336]

約数ペア:

[(1, 156640336), (2, 78320168), (4, 39160084), (8, 19580042), (16, 9790021), (41, 3820496), (82, 1910248), (164, 955124), (328, 477562), (656, 238781)]