81443956

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2633}}^1$

素因数の和:2704

約数の個数: 48

約数和(自身を含む): 168154560

約数和(自身を除く): 86710604

約数列:

[1, 2, 4, 11, 19, 22, 37, 38, 44, 74, 76, 148, 209, 407, 418, 703, 814, 836, 1406, 1628, 2633, 2812, 5266, 7733, 10532, 15466, 28963, 30932, 50027, 57926, 97421, 100054, 115852, 194842, 200108, 389684, 550297, 1071631, 1100594, 1850999, 2143262, 2201188, 3701998, 4286524, 7403996, 20360989, 40721978, 81443956]

約数ペア:

[(1, 81443956), (2, 40721978), (4, 20360989), (11, 7403996), (19, 4286524), (22, 3701998), (37, 2201188), (38, 2143262), (44, 1850999), (74, 1100594), (76, 1071631), (148, 550297), (209, 389684), (407, 200108), (418, 194842), (703, 115852), (814, 100054), (836, 97421), (1406, 57926), (1628, 50027), (2633, 30932), (2812, 28963), (5266, 15466), (7733, 10532)]