205429444

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:385

約数の個数: 72

約数和(自身を含む): 422301600

約数和(自身を除く): 216872156

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 89, 121, 178, 209, 242, 251, 356, 418, 484, 502, 836, 979, 1004, 1691, 1958, 2299, 2761, 3382, 3916, 4598, 4769, 5522, 6764, 9196, 9538, 10769, 11044, 18601, 19076, 21538, 22339, 30371, 37202, 43076, 44678, 52459, 60742, 74404, 89356, 104918, 121484, 204611, 209836, 245729, 409222, 424441, 491458, 577049, 818444, 848882, 982916, 1154098, 1697764, 2308196, 2703019, 4668851, 5406038, 9337702, 10812076, 18675404, 51357361, 102714722, 205429444]

約数ペア:

[(1, 205429444), (2, 102714722), (4, 51357361), (11, 18675404), (19, 10812076), (22, 9337702), (38, 5406038), (44, 4668851), (76, 2703019), (89, 2308196), (121, 1697764), (178, 1154098), (209, 982916), (242, 848882), (251, 818444), (356, 577049), (418, 491458), (484, 424441), (502, 409222), (836, 245729), (979, 209836), (1004, 204611), (1691, 121484), (1958, 104918), (2299, 89356), (2761, 74404), (3382, 60742), (3916, 52459), (4598, 44678), (4769, 43076), (5522, 37202), (6764, 30371), (9196, 22339), (9538, 21538), (10769, 19076), (11044, 18601)]