20183170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 43794432

約数和(自身を除く): 23611262

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 71, 131, 142, 155, 217, 262, 310, 355, 434, 497, 655, 710, 917, 994, 1085, 1310, 1834, 2170, 2201, 2485, 4061, 4402, 4585, 4970, 8122, 9170, 9301, 11005, 15407, 18602, 20305, 22010, 28427, 30814, 40610, 46505, 56854, 65107, 77035, 93010, 130214, 142135, 154070, 284270, 288331, 325535, 576662, 651070, 1441655, 2018317, 2883310, 4036634, 10091585, 20183170]

約数ペア:

[(1, 20183170), (2, 10091585), (5, 4036634), (7, 2883310), (10, 2018317), (14, 1441655), (31, 651070), (35, 576662), (62, 325535), (70, 288331), (71, 284270), (131, 154070), (142, 142135), (155, 130214), (217, 93010), (262, 77035), (310, 65107), (355, 56854), (434, 46505), (497, 40610), (655, 30814), (710, 28427), (917, 22010), (994, 20305), (1085, 18602), (1310, 15407), (1834, 11005), (2170, 9301), (2201, 9170), (2485, 8122), (4061, 4970), (4402, 4585)]