20161632740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{571799}}^1$

素因数の和:571892

約数の個数: 48

約数和(自身を含む): 44380828800

約数和(自身を除く): 24219196060

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 82, 86, 164, 172, 205, 215, 410, 430, 820, 860, 1763, 3526, 7052, 8815, 17630, 35260, 571799, 1143598, 2287196, 2858995, 5717990, 11435980, 23443759, 24587357, 46887518, 49174714, 93775036, 98349428, 117218795, 122936785, 234437590, 245873570, 468875180, 491747140, 1008081637, 2016163274, 4032326548, 5040408185, 10080816370, 20161632740]

約数ペア:

[(1, 20161632740), (2, 10080816370), (4, 5040408185), (5, 4032326548), (10, 2016163274), (20, 1008081637), (41, 491747140), (43, 468875180), (82, 245873570), (86, 234437590), (164, 122936785), (172, 117218795), (205, 98349428), (215, 93775036), (410, 49174714), (430, 46887518), (820, 24587357), (860, 23443759), (1763, 11435980), (3526, 5717990), (7052, 2858995), (8815, 2287196), (17630, 1143598), (35260, 571799)]