1899684875

素因数分解:

$5^3\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:198

約数の個数: 96

約数和(自身を含む): 2778572160

約数和(自身を除く): 878887285

約数列:

[1, 5, 11, 25, 29, 55, 61, 71, 121, 125, 145, 275, 305, 319, 355, 605, 671, 725, 781, 1375, 1525, 1595, 1769, 1775, 2059, 3025, 3355, 3509, 3625, 3905, 4331, 7381, 7625, 7975, 8591, 8845, 8875, 10295, 15125, 16775, 17545, 19459, 19525, 21655, 22649, 36905, 39875, 42955, 44225, 47641, 51475, 83875, 87725, 97295, 97625, 108275, 113245, 125599, 184525, 214049, 214775, 221125, 238205, 249139, 257375, 438625, 486475, 524051, 541375, 566225, 627995, 922625, 1070245, 1073875, 1191025, 1245695, 1381589, 2432375, 2620255, 2831125, 3139975, 5351225, 5955125, 6228475, 6907945, 13101275, 15197479, 15699875, 26756125, 31142375, 34539725, 65506375, 75987395, 172698625, 379936975, 1899684875]

約数ペア:

[(1, 1899684875), (5, 379936975), (11, 172698625), (25, 75987395), (29, 65506375), (55, 34539725), (61, 31142375), (71, 26756125), (121, 15699875), (125, 15197479), (145, 13101275), (275, 6907945), (305, 6228475), (319, 5955125), (355, 5351225), (605, 3139975), (671, 2831125), (725, 2620255), (781, 2432375), (1375, 1381589), (1525, 1245695), (1595, 1191025), (1769, 1073875), (1775, 1070245), (2059, 922625), (3025, 627995), (3355, 566225), (3509, 541375), (3625, 524051), (3905, 486475), (4331, 438625), (7381, 257375), (7625, 249139), (7975, 238205), (8591, 221125), (8845, 214775), (8875, 214049), (10295, 184525), (15125, 125599), (16775, 113245), (17545, 108275), (19459, 97625), (19525, 97295), (21655, 87725), (22649, 83875), (36905, 51475), (39875, 47641), (42955, 44225)]