20189619075

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{272189}}^1$

素因数の和:272268

約数の個数: 48

約数和(自身を含む): 35641647360

約数和(自身を除く): 15452028285

約数列:

[1, 3, 5, 15, 23, 25, 43, 69, 75, 115, 129, 215, 345, 575, 645, 989, 1075, 1725, 2967, 3225, 4945, 14835, 24725, 74175, 272189, 816567, 1360945, 4082835, 6260347, 6804725, 11704127, 18781041, 20414175, 31301735, 35112381, 58520635, 93905205, 156508675, 175561905, 269194921, 292603175, 469526025, 807584763, 877809525, 1345974605, 4037923815, 6729873025, 20189619075]

約数ペア:

[(1, 20189619075), (3, 6729873025), (5, 4037923815), (15, 1345974605), (23, 877809525), (25, 807584763), (43, 469526025), (69, 292603175), (75, 269194921), (115, 175561905), (129, 156508675), (215, 93905205), (345, 58520635), (575, 35112381), (645, 31301735), (989, 20414175), (1075, 18781041), (1725, 11704127), (2967, 6804725), (3225, 6260347), (4945, 4082835), (14835, 1360945), (24725, 816567), (74175, 272189)]