128466264980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{431}}^1\times {\mathrm{222437}}^1$

素因数の和:222944

約数の個数: 48

約数和(自身を含む): 274442224896

約数和(自身を除く): 145975959916

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 431, 670, 862, 1340, 1724, 2155, 4310, 8620, 28877, 57754, 115508, 144385, 222437, 288770, 444874, 577540, 889748, 1112185, 2224370, 4448740, 14903279, 29806558, 59613116, 74516395, 95870347, 149032790, 191740694, 298065580, 383481388, 479351735, 958703470, 1917406940, 6423313249, 12846626498, 25693252996, 32116566245, 64233132490, 128466264980]

約数ペア:

[(1, 128466264980), (2, 64233132490), (4, 32116566245), (5, 25693252996), (10, 12846626498), (20, 6423313249), (67, 1917406940), (134, 958703470), (268, 479351735), (335, 383481388), (431, 298065580), (670, 191740694), (862, 149032790), (1340, 95870347), (1724, 74516395), (2155, 59613116), (4310, 29806558), (8620, 14903279), (28877, 4448740), (57754, 2224370), (115508, 1112185), (144385, 889748), (222437, 577540), (288770, 444874)]