20161461620

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{277}}^1\times {\mathrm{15227}}^1$

素因数の和:15752

約数の個数: 48

約数和(自身を含む): 42672510720

約数和(自身を除く): 22511049100

約数列:

[1, 2, 4, 5, 10, 20, 239, 277, 478, 554, 956, 1108, 1195, 1385, 2390, 2770, 4780, 5540, 15227, 30454, 60908, 66203, 76135, 132406, 152270, 264812, 304540, 331015, 662030, 1324060, 3639253, 4217879, 7278506, 8435758, 14557012, 16871516, 18196265, 21089395, 36392530, 42178790, 72785060, 84357580, 1008073081, 2016146162, 4032292324, 5040365405, 10080730810, 20161461620]

約数ペア:

[(1, 20161461620), (2, 10080730810), (4, 5040365405), (5, 4032292324), (10, 2016146162), (20, 1008073081), (239, 84357580), (277, 72785060), (478, 42178790), (554, 36392530), (956, 21089395), (1108, 18196265), (1195, 16871516), (1385, 14557012), (2390, 8435758), (2770, 7278506), (4780, 4217879), (5540, 3639253), (15227, 1324060), (30454, 662030), (60908, 331015), (66203, 304540), (76135, 264812), (132406, 152270)]