20162980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{367}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 44142336

約数和(自身を除く): 23979356

約数列:

[1, 2, 4, 5, 10, 20, 41, 67, 82, 134, 164, 205, 268, 335, 367, 410, 670, 734, 820, 1340, 1468, 1835, 2747, 3670, 5494, 7340, 10988, 13735, 15047, 24589, 27470, 30094, 49178, 54940, 60188, 75235, 98356, 122945, 150470, 245890, 300940, 491780, 1008149, 2016298, 4032596, 5040745, 10081490, 20162980]

約数ペア:

[(1, 20162980), (2, 10081490), (4, 5040745), (5, 4032596), (10, 2016298), (20, 1008149), (41, 491780), (67, 300940), (82, 245890), (134, 150470), (164, 122945), (205, 98356), (268, 75235), (335, 60188), (367, 54940), (410, 49178), (670, 30094), (734, 27470), (820, 24589), (1340, 15047), (1468, 13735), (1835, 10988), (2747, 7340), (3670, 5494)]