38888820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:254

約数の個数: 144

約数和(自身を含む): 126584640

約数和(自身を除く): 87695820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 83, 90, 95, 114, 137, 166, 171, 180, 190, 228, 249, 274, 285, 332, 342, 380, 411, 415, 498, 548, 570, 684, 685, 747, 822, 830, 855, 996, 1140, 1233, 1245, 1370, 1494, 1577, 1644, 1660, 1710, 2055, 2466, 2490, 2603, 2740, 2988, 3154, 3420, 3735, 4110, 4731, 4932, 4980, 5206, 6165, 6308, 7470, 7809, 7885, 8220, 9462, 10412, 11371, 12330, 13015, 14193, 14940, 15618, 15770, 18924, 22742, 23427, 23655, 24660, 26030, 28386, 31236, 31540, 34113, 39045, 45484, 46854, 47310, 52060, 56772, 56855, 68226, 70965, 78090, 93708, 94620, 102339, 113710, 117135, 136452, 141930, 156180, 170565, 204678, 216049, 227420, 234270, 283860, 341130, 409356, 432098, 468540, 511695, 648147, 682260, 864196, 1023390, 1080245, 1296294, 1944441, 2046780, 2160490, 2592588, 3240735, 3888882, 4320980, 6481470, 7777764, 9722205, 12962940, 19444410, 38888820]

約数ペア:

[(1, 38888820), (2, 19444410), (3, 12962940), (4, 9722205), (5, 7777764), (6, 6481470), (9, 4320980), (10, 3888882), (12, 3240735), (15, 2592588), (18, 2160490), (19, 2046780), (20, 1944441), (30, 1296294), (36, 1080245), (38, 1023390), (45, 864196), (57, 682260), (60, 648147), (76, 511695), (83, 468540), (90, 432098), (95, 409356), (114, 341130), (137, 283860), (166, 234270), (171, 227420), (180, 216049), (190, 204678), (228, 170565), (249, 156180), (274, 141930), (285, 136452), (332, 117135), (342, 113710), (380, 102339), (411, 94620), (415, 93708), (498, 78090), (548, 70965), (570, 68226), (684, 56855), (685, 56772), (747, 52060), (822, 47310), (830, 46854), (855, 45484), (996, 39045), (1140, 34113), (1233, 31540), (1245, 31236), (1370, 28386), (1494, 26030), (1577, 24660), (1644, 23655), (1660, 23427), (1710, 22742), (2055, 18924), (2466, 15770), (2490, 15618), (2603, 14940), (2740, 14193), (2988, 13015), (3154, 12330), (3420, 11371), (3735, 10412), (4110, 9462), (4731, 8220), (4932, 7885), (4980, 7809), (5206, 7470), (6165, 6308)]