31291708

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{449}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 66528000

約数和(自身を除く): 35236292

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 131, 133, 262, 266, 449, 524, 532, 898, 917, 1796, 1834, 2489, 3143, 3668, 4978, 6286, 8531, 9956, 12572, 17062, 17423, 34124, 34846, 58819, 59717, 69692, 117638, 119434, 235276, 238868, 411733, 823466, 1117561, 1646932, 2235122, 4470244, 7822927, 15645854, 31291708]

約数ペア:

[(1, 31291708), (2, 15645854), (4, 7822927), (7, 4470244), (14, 2235122), (19, 1646932), (28, 1117561), (38, 823466), (76, 411733), (131, 238868), (133, 235276), (262, 119434), (266, 117638), (449, 69692), (524, 59717), (532, 58819), (898, 34846), (917, 34124), (1796, 17423), (1834, 17062), (2489, 12572), (3143, 9956), (3668, 8531), (4978, 6286)]