20161002980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1294031}}^1$

素因数の和:1294100

約数の個数: 48

約数和(自身を含む): 45653448960

約数和(自身を除く): 25492445980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 3116, 3895, 7790, 15580, 1294031, 2588062, 5176124, 6470155, 12940310, 24586589, 25880620, 49173178, 53055271, 98346356, 106110542, 122932945, 212221084, 245865890, 265276355, 491731780, 530552710, 1008050149, 1061105420, 2016100298, 4032200596, 5040250745, 10080501490, 20161002980]

約数ペア:

[(1, 20161002980), (2, 10080501490), (4, 5040250745), (5, 4032200596), (10, 2016100298), (19, 1061105420), (20, 1008050149), (38, 530552710), (41, 491731780), (76, 265276355), (82, 245865890), (95, 212221084), (164, 122932945), (190, 106110542), (205, 98346356), (380, 53055271), (410, 49173178), (779, 25880620), (820, 24586589), (1558, 12940310), (3116, 6470155), (3895, 5176124), (7790, 2588062), (15580, 1294031)]