20199797625

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{248231}}^1$

素因数の和:248287

約数の個数: 64

約数和(自身を含む): 39653572608

約数和(自身を除く): 19453774983

約数列:

[1, 3, 5, 7, 15, 21, 25, 31, 35, 75, 93, 105, 125, 155, 175, 217, 375, 465, 525, 651, 775, 875, 1085, 2325, 2625, 3255, 3875, 5425, 11625, 16275, 27125, 81375, 248231, 744693, 1241155, 1737617, 3723465, 5212851, 6205775, 7695161, 8688085, 18617325, 23085483, 26064255, 31028875, 38475805, 43440425, 53866127, 93086625, 115427415, 130321275, 161598381, 192379025, 217202125, 269330635, 577137075, 651606375, 807991905, 961895125, 1346653175, 2885685375, 4039959525, 6733265875, 20199797625]

約数ペア:

[(1, 20199797625), (3, 6733265875), (5, 4039959525), (7, 2885685375), (15, 1346653175), (21, 961895125), (25, 807991905), (31, 651606375), (35, 577137075), (75, 269330635), (93, 217202125), (105, 192379025), (125, 161598381), (155, 130321275), (175, 115427415), (217, 93086625), (375, 53866127), (465, 43440425), (525, 38475805), (651, 31028875), (775, 26064255), (875, 23085483), (1085, 18617325), (2325, 8688085), (2625, 7695161), (3255, 6205775), (3875, 5212851), (5425, 3723465), (11625, 1737617), (16275, 1241155), (27125, 744693), (81375, 248231)]