19938082175

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1451}}^1\times {\mathrm{1723}}^1$

素因数の和:3224

約数の個数: 48

約数和(自身を含む): 27936247680

約数和(自身を除く): 7998165505

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 319, 725, 1451, 1595, 1723, 7255, 7975, 8615, 15961, 18953, 36275, 42079, 43075, 49967, 79805, 94765, 210395, 249835, 399025, 462869, 473825, 549637, 1051975, 1249175, 2314345, 2500073, 2748185, 11571725, 12500365, 13740925, 27500803, 62501825, 72502117, 137504015, 362510585, 687520075, 797523287, 1812552925, 3987616435, 19938082175]

約数ペア:

[(1, 19938082175), (5, 3987616435), (11, 1812552925), (25, 797523287), (29, 687520075), (55, 362510585), (145, 137504015), (275, 72502117), (319, 62501825), (725, 27500803), (1451, 13740925), (1595, 12500365), (1723, 11571725), (7255, 2748185), (7975, 2500073), (8615, 2314345), (15961, 1249175), (18953, 1051975), (36275, 549637), (42079, 473825), (43075, 462869), (49967, 399025), (79805, 249835), (94765, 210395)]