1291225540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{811}}^1\times {\mathrm{7237}}^1$

素因数の和:8068

約数の個数: 48

約数和(自身を含む): 2962137024

約数和(自身を除く): 1670911484

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 811, 1622, 3244, 4055, 7237, 8110, 8921, 14474, 16220, 17842, 28948, 35684, 36185, 44605, 72370, 79607, 89210, 144740, 159214, 178420, 318428, 398035, 796070, 1592140, 5869207, 11738414, 23476828, 29346035, 58692070, 64561277, 117384140, 129122554, 258245108, 322806385, 645612770, 1291225540]

約数ペア:

[(1, 1291225540), (2, 645612770), (4, 322806385), (5, 258245108), (10, 129122554), (11, 117384140), (20, 64561277), (22, 58692070), (44, 29346035), (55, 23476828), (110, 11738414), (220, 5869207), (811, 1592140), (1622, 796070), (3244, 398035), (4055, 318428), (7237, 178420), (8110, 159214), (8921, 144740), (14474, 89210), (16220, 79607), (17842, 72370), (28948, 44605), (35684, 36185)]