81642960

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1$

素因数の和:290

約数の個数: 240

約数和(自身を含む): 318479616

約数和(自身を除く): 236836656

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 97, 105, 112, 120, 126, 140, 144, 167, 168, 180, 194, 210, 240, 252, 280, 291, 315, 334, 336, 360, 388, 420, 485, 501, 504, 560, 582, 630, 668, 679, 720, 776, 835, 840, 873, 970, 1002, 1008, 1164, 1169, 1260, 1336, 1358, 1455, 1503, 1552, 1670, 1680, 1746, 1940, 2004, 2037, 2328, 2338, 2505, 2520, 2672, 2716, 2910, 3006, 3340, 3395, 3492, 3507, 3880, 4008, 4074, 4365, 4656, 4676, 5010, 5040, 5432, 5820, 5845, 6012, 6111, 6680, 6790, 6984, 7014, 7515, 7760, 8016, 8148, 8730, 9352, 10020, 10185, 10521, 10864, 11640, 11690, 12024, 12222, 13360, 13580, 13968, 14028, 15030, 16199, 16296, 17460, 17535, 18704, 20040, 20370, 21042, 23280, 23380, 24048, 24444, 27160, 28056, 30060, 30555, 32398, 32592, 34920, 35070, 40080, 40740, 42084, 46760, 48597, 48888, 52605, 54320, 56112, 60120, 61110, 64796, 69840, 70140, 80995, 81480, 84168, 93520, 97194, 97776, 105210, 113393, 120240, 122220, 129592, 140280, 145791, 161990, 162960, 168336, 194388, 210420, 226786, 242985, 244440, 259184, 280560, 291582, 323980, 340179, 388776, 420840, 453572, 485970, 488880, 566965, 583164, 647960, 680358, 728955, 777552, 841680, 907144, 971940, 1020537, 1133930, 1166328, 1295920, 1360716, 1457910, 1700895, 1814288, 1943880, 2041074, 2267860, 2332656, 2721432, 2915820, 3401790, 3887760, 4082148, 4535720, 5102685, 5442864, 5831640, 6803580, 8164296, 9071440, 10205370, 11663280, 13607160, 16328592, 20410740, 27214320, 40821480, 81642960]

約数ペア:

[(1, 81642960), (2, 40821480), (3, 27214320), (4, 20410740), (5, 16328592), (6, 13607160), (7, 11663280), (8, 10205370), (9, 9071440), (10, 8164296), (12, 6803580), (14, 5831640), (15, 5442864), (16, 5102685), (18, 4535720), (20, 4082148), (21, 3887760), (24, 3401790), (28, 2915820), (30, 2721432), (35, 2332656), (36, 2267860), (40, 2041074), (42, 1943880), (45, 1814288), (48, 1700895), (56, 1457910), (60, 1360716), (63, 1295920), (70, 1166328), (72, 1133930), (80, 1020537), (84, 971940), (90, 907144), (97, 841680), (105, 777552), (112, 728955), (120, 680358), (126, 647960), (140, 583164), (144, 566965), (167, 488880), (168, 485970), (180, 453572), (194, 420840), (210, 388776), (240, 340179), (252, 323980), (280, 291582), (291, 280560), (315, 259184), (334, 244440), (336, 242985), (360, 226786), (388, 210420), (420, 194388), (485, 168336), (501, 162960), (504, 161990), (560, 145791), (582, 140280), (630, 129592), (668, 122220), (679, 120240), (720, 113393), (776, 105210), (835, 97776), (840, 97194), (873, 93520), (970, 84168), (1002, 81480), (1008, 80995), (1164, 70140), (1169, 69840), (1260, 64796), (1336, 61110), (1358, 60120), (1455, 56112), (1503, 54320), (1552, 52605), (1670, 48888), (1680, 48597), (1746, 46760), (1940, 42084), (2004, 40740), (2037, 40080), (2328, 35070), (2338, 34920), (2505, 32592), (2520, 32398), (2672, 30555), (2716, 30060), (2910, 28056), (3006, 27160), (3340, 24444), (3395, 24048), (3492, 23380), (3507, 23280), (3880, 21042), (4008, 20370), (4074, 20040), (4365, 18704), (4656, 17535), (4676, 17460), (5010, 16296), (5040, 16199), (5432, 15030), (5820, 14028), (5845, 13968), (6012, 13580), (6111, 13360), (6680, 12222), (6790, 12024), (6984, 11690), (7014, 11640), (7515, 10864), (7760, 10521), (8016, 10185), (8148, 10020), (8730, 9352)]