20720349224

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1\times {\mathrm{15391}}^1$

素因数の和:15954

約数の個数: 64

約数和(自身を含む): 43386969600

約数和(自身を除く): 22666620376

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 521, 646, 1042, 1292, 2084, 2584, 4168, 8857, 9899, 15391, 17714, 19798, 30782, 35428, 39596, 61564, 70856, 79192, 123128, 168283, 261647, 292429, 336566, 523294, 584858, 673132, 1046588, 1169716, 1346264, 2093176, 2339432, 4971293, 8018711, 9942586, 16037422, 19885172, 32074844, 39770344, 64149688, 136318087, 152355509, 272636174, 304711018, 545272348, 609422036, 1090544696, 1218844072, 2590043653, 5180087306, 10360174612, 20720349224]

約数ペア:

[(1, 20720349224), (2, 10360174612), (4, 5180087306), (8, 2590043653), (17, 1218844072), (19, 1090544696), (34, 609422036), (38, 545272348), (68, 304711018), (76, 272636174), (136, 152355509), (152, 136318087), (323, 64149688), (521, 39770344), (646, 32074844), (1042, 19885172), (1292, 16037422), (2084, 9942586), (2584, 8018711), (4168, 4971293), (8857, 2339432), (9899, 2093176), (15391, 1346264), (17714, 1169716), (19798, 1046588), (30782, 673132), (35428, 584858), (39596, 523294), (61564, 336566), (70856, 292429), (79192, 261647), (123128, 168283)]