20456469255

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{8689}}^1$

素因数の和:8872

約数の個数: 64

約数和(自身を含む): 34757775360

約数和(自身を除く): 14301306105

約数列:

[1, 3, 5, 15, 31, 61, 83, 93, 155, 183, 249, 305, 415, 465, 915, 1245, 1891, 2573, 5063, 5673, 7719, 8689, 9455, 12865, 15189, 25315, 26067, 28365, 38595, 43445, 75945, 130335, 156953, 269359, 470859, 530029, 721187, 784765, 808077, 1346795, 1590087, 2163561, 2354295, 2650145, 3605935, 4040385, 7950435, 10817805, 16430899, 22356797, 43992407, 49292697, 67070391, 82154495, 111783985, 131977221, 219962035, 246463485, 335351955, 659886105, 1363764617, 4091293851, 6818823085, 20456469255]

約数ペア:

[(1, 20456469255), (3, 6818823085), (5, 4091293851), (15, 1363764617), (31, 659886105), (61, 335351955), (83, 246463485), (93, 219962035), (155, 131977221), (183, 111783985), (249, 82154495), (305, 67070391), (415, 49292697), (465, 43992407), (915, 22356797), (1245, 16430899), (1891, 10817805), (2573, 7950435), (5063, 4040385), (5673, 3605935), (7719, 2650145), (8689, 2354295), (9455, 2163561), (12865, 1590087), (15189, 1346795), (25315, 808077), (26067, 784765), (28365, 721187), (38595, 530029), (43445, 470859), (75945, 269359), (130335, 156953)]