1991231476

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1\times {\mathrm{1429}}^1$

素因数の和:1784

約数の個数: 48

約数和(自身を含む): 3802839040

約数和(自身を除く): 1811607564

約数列:

[1, 2, 4, 13, 26, 52, 127, 211, 254, 422, 508, 844, 1429, 1651, 2743, 2858, 3302, 5486, 5716, 6604, 10972, 18577, 26797, 37154, 53594, 74308, 107188, 181483, 301519, 348361, 362966, 603038, 696722, 725932, 1206076, 1393444, 2359279, 3919747, 4718558, 7839494, 9437116, 15678988, 38292913, 76585826, 153171652, 497807869, 995615738, 1991231476]

約数ペア:

[(1, 1991231476), (2, 995615738), (4, 497807869), (13, 153171652), (26, 76585826), (52, 38292913), (127, 15678988), (211, 9437116), (254, 7839494), (422, 4718558), (508, 3919747), (844, 2359279), (1429, 1393444), (1651, 1206076), (2743, 725932), (2858, 696722), (3302, 603038), (5486, 362966), (5716, 348361), (6604, 301519), (10972, 181483), (18577, 107188), (26797, 74308), (37154, 53594)]