254498940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:440

約数の個数: 144

約数和(自身を含む): 799134336

約数和(自身を除く): 544635396

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 131, 172, 180, 215, 251, 258, 262, 387, 393, 430, 502, 516, 524, 645, 655, 753, 774, 786, 860, 1004, 1179, 1255, 1290, 1310, 1506, 1548, 1572, 1935, 1965, 2259, 2358, 2510, 2580, 2620, 3012, 3765, 3870, 3930, 4518, 4716, 5020, 5633, 5895, 7530, 7740, 7860, 9036, 10793, 11266, 11295, 11790, 15060, 16899, 21586, 22532, 22590, 23580, 28165, 32379, 32881, 33798, 43172, 45180, 50697, 53965, 56330, 64758, 65762, 67596, 84495, 97137, 98643, 101394, 107930, 112660, 129516, 131524, 161895, 164405, 168990, 194274, 197286, 202788, 215860, 253485, 295929, 323790, 328810, 337980, 388548, 394572, 485685, 493215, 506970, 591858, 647580, 657620, 971370, 986430, 1013940, 1183716, 1413883, 1479645, 1942740, 1972860, 2827766, 2959290, 4241649, 5655532, 5918580, 7069415, 8483298, 12724947, 14138830, 16966596, 21208245, 25449894, 28277660, 42416490, 50899788, 63624735, 84832980, 127249470, 254498940]

約数ペア:

[(1, 254498940), (2, 127249470), (3, 84832980), (4, 63624735), (5, 50899788), (6, 42416490), (9, 28277660), (10, 25449894), (12, 21208245), (15, 16966596), (18, 14138830), (20, 12724947), (30, 8483298), (36, 7069415), (43, 5918580), (45, 5655532), (60, 4241649), (86, 2959290), (90, 2827766), (129, 1972860), (131, 1942740), (172, 1479645), (180, 1413883), (215, 1183716), (251, 1013940), (258, 986430), (262, 971370), (387, 657620), (393, 647580), (430, 591858), (502, 506970), (516, 493215), (524, 485685), (645, 394572), (655, 388548), (753, 337980), (774, 328810), (786, 323790), (860, 295929), (1004, 253485), (1179, 215860), (1255, 202788), (1290, 197286), (1310, 194274), (1506, 168990), (1548, 164405), (1572, 161895), (1935, 131524), (1965, 129516), (2259, 112660), (2358, 107930), (2510, 101394), (2580, 98643), (2620, 97137), (3012, 84495), (3765, 67596), (3870, 65762), (3930, 64758), (4518, 56330), (4716, 53965), (5020, 50697), (5633, 45180), (5895, 43172), (7530, 33798), (7740, 32881), (7860, 32379), (9036, 28165), (10793, 23580), (11266, 22590), (11295, 22532), (11790, 21586), (15060, 16899)]