128668724

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{89}}^2\times {\mathrm{131}}^1$

素因数の和:344

約数の個数: 36

約数和(自身を含む): 236869248

約数和(自身を除く): 108200524

約数列:

[1, 2, 4, 31, 62, 89, 124, 131, 178, 262, 356, 524, 2759, 4061, 5518, 7921, 8122, 11036, 11659, 15842, 16244, 23318, 31684, 46636, 245551, 361429, 491102, 722858, 982204, 1037651, 1445716, 2075302, 4150604, 32167181, 64334362, 128668724]

約数ペア:

[(1, 128668724), (2, 64334362), (4, 32167181), (31, 4150604), (62, 2075302), (89, 1445716), (124, 1037651), (131, 982204), (178, 722858), (262, 491102), (356, 361429), (524, 245551), (2759, 46636), (4061, 31684), (5518, 23318), (7921, 16244), (8122, 15842), (11036, 11659)]