20988528

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{313}}^1$

素因数の和:462

約数の個数: 80

約数和(自身を含む): 59805696

約数和(自身を除く): 38817168

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 127, 132, 176, 254, 264, 313, 381, 508, 528, 626, 762, 939, 1016, 1252, 1397, 1524, 1878, 2032, 2504, 2794, 3048, 3443, 3756, 4191, 5008, 5588, 6096, 6886, 7512, 8382, 10329, 11176, 13772, 15024, 16764, 20658, 22352, 27544, 33528, 39751, 41316, 55088, 67056, 79502, 82632, 119253, 159004, 165264, 238506, 318008, 437261, 477012, 636016, 874522, 954024, 1311783, 1749044, 1908048, 2623566, 3498088, 5247132, 6996176, 10494264, 20988528]

約数ペア:

[(1, 20988528), (2, 10494264), (3, 6996176), (4, 5247132), (6, 3498088), (8, 2623566), (11, 1908048), (12, 1749044), (16, 1311783), (22, 954024), (24, 874522), (33, 636016), (44, 477012), (48, 437261), (66, 318008), (88, 238506), (127, 165264), (132, 159004), (176, 119253), (254, 82632), (264, 79502), (313, 67056), (381, 55088), (508, 41316), (528, 39751), (626, 33528), (762, 27544), (939, 22352), (1016, 20658), (1252, 16764), (1397, 15024), (1524, 13772), (1878, 11176), (2032, 10329), (2504, 8382), (2794, 7512), (3048, 6886), (3443, 6096), (3756, 5588), (4191, 5008)]