642464

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{1181}}^1$

素因数の和:1208

約数の個数: 24

約数和(自身を含む): 1340388

約数和(自身を除く): 697924

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 272, 544, 1181, 2362, 4724, 9448, 18896, 20077, 37792, 40154, 80308, 160616, 321232, 642464]

約数ペア:

[(1, 642464), (2, 321232), (4, 160616), (8, 80308), (16, 40154), (17, 37792), (32, 20077), (34, 18896), (68, 9448), (136, 4724), (272, 2362), (544, 1181)]