256836996

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{8191}}^1$

素因数の和:8281

約数の個数: 72

約数和(自身を含む): 709689344

約数和(自身を除く): 452852348

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 67, 78, 117, 134, 156, 201, 234, 268, 402, 468, 603, 804, 871, 1206, 1742, 2412, 2613, 3484, 5226, 7839, 8191, 10452, 15678, 16382, 24573, 31356, 32764, 49146, 73719, 98292, 106483, 147438, 212966, 294876, 319449, 425932, 548797, 638898, 958347, 1097594, 1277796, 1646391, 1916694, 2195188, 3292782, 3833388, 4939173, 6585564, 7134361, 9878346, 14268722, 19756692, 21403083, 28537444, 42806166, 64209249, 85612332, 128418498, 256836996]

約数ペア:

[(1, 256836996), (2, 128418498), (3, 85612332), (4, 64209249), (6, 42806166), (9, 28537444), (12, 21403083), (13, 19756692), (18, 14268722), (26, 9878346), (36, 7134361), (39, 6585564), (52, 4939173), (67, 3833388), (78, 3292782), (117, 2195188), (134, 1916694), (156, 1646391), (201, 1277796), (234, 1097594), (268, 958347), (402, 638898), (468, 548797), (603, 425932), (804, 319449), (871, 294876), (1206, 212966), (1742, 147438), (2412, 106483), (2613, 98292), (3484, 73719), (5226, 49146), (7839, 32764), (8191, 31356), (10452, 24573), (15678, 16382)]