68517800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1$

素因数の和:140

約数の個数: 144

約数和(自身を含む): 183542940

約数和(自身を除く): 115025140

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 25, 26, 38, 40, 50, 52, 65, 73, 76, 95, 100, 104, 130, 146, 152, 190, 200, 247, 260, 292, 325, 361, 365, 380, 475, 494, 520, 584, 650, 722, 730, 760, 949, 950, 988, 1235, 1300, 1387, 1444, 1460, 1805, 1825, 1898, 1900, 1976, 2470, 2600, 2774, 2888, 2920, 3610, 3650, 3796, 3800, 4693, 4745, 4940, 5548, 6175, 6935, 7220, 7300, 7592, 9025, 9386, 9490, 9880, 11096, 12350, 13870, 14440, 14600, 18031, 18050, 18772, 18980, 23465, 23725, 24700, 26353, 27740, 34675, 36062, 36100, 37544, 37960, 46930, 47450, 49400, 52706, 55480, 69350, 72124, 72200, 90155, 93860, 94900, 105412, 117325, 131765, 138700, 144248, 180310, 187720, 189800, 210824, 234650, 263530, 277400, 342589, 360620, 450775, 469300, 527060, 658825, 685178, 721240, 901550, 938600, 1054120, 1317650, 1370356, 1712945, 1803100, 2635300, 2740712, 3425890, 3606200, 5270600, 6851780, 8564725, 13703560, 17129450, 34258900, 68517800]

約数ペア:

[(1, 68517800), (2, 34258900), (4, 17129450), (5, 13703560), (8, 8564725), (10, 6851780), (13, 5270600), (19, 3606200), (20, 3425890), (25, 2740712), (26, 2635300), (38, 1803100), (40, 1712945), (50, 1370356), (52, 1317650), (65, 1054120), (73, 938600), (76, 901550), (95, 721240), (100, 685178), (104, 658825), (130, 527060), (146, 469300), (152, 450775), (190, 360620), (200, 342589), (247, 277400), (260, 263530), (292, 234650), (325, 210824), (361, 189800), (365, 187720), (380, 180310), (475, 144248), (494, 138700), (520, 131765), (584, 117325), (650, 105412), (722, 94900), (730, 93860), (760, 90155), (949, 72200), (950, 72124), (988, 69350), (1235, 55480), (1300, 52706), (1387, 49400), (1444, 47450), (1460, 46930), (1805, 37960), (1825, 37544), (1898, 36100), (1900, 36062), (1976, 34675), (2470, 27740), (2600, 26353), (2774, 24700), (2888, 23725), (2920, 23465), (3610, 18980), (3650, 18772), (3796, 18050), (3800, 18031), (4693, 14600), (4745, 14440), (4940, 13870), (5548, 12350), (6175, 11096), (6935, 9880), (7220, 9490), (7300, 9386), (7592, 9025)]