1428865580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1\times {\mathrm{4139}}^1$

素因数の和:4610

約数の個数: 48

約数和(自身を含む): 3081849120

約数和(自身を除く): 1652983540

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 421, 820, 842, 1684, 2105, 4139, 4210, 8278, 8420, 16556, 17261, 20695, 34522, 41390, 69044, 82780, 86305, 169699, 172610, 339398, 345220, 678796, 848495, 1696990, 1742519, 3393980, 3485038, 6970076, 8712595, 17425190, 34850380, 71443279, 142886558, 285773116, 357216395, 714432790, 1428865580]

約数ペア:

[(1, 1428865580), (2, 714432790), (4, 357216395), (5, 285773116), (10, 142886558), (20, 71443279), (41, 34850380), (82, 17425190), (164, 8712595), (205, 6970076), (410, 3485038), (421, 3393980), (820, 1742519), (842, 1696990), (1684, 848495), (2105, 678796), (4139, 345220), (4210, 339398), (8278, 172610), (8420, 169699), (16556, 86305), (17261, 82780), (20695, 69044), (34522, 41390)]