257541984

素因数分解:

$2^5\times 3^3\times 7^1\times {\mathrm{97}}^1\times {\mathrm{439}}^1$

素因数の和:562

約数の個数: 192

約数和(自身を含む): 869299200

約数和(自身を除く): 611757216

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 72, 84, 96, 97, 108, 112, 126, 144, 168, 189, 194, 216, 224, 252, 288, 291, 336, 378, 388, 432, 439, 504, 582, 672, 679, 756, 776, 864, 873, 878, 1008, 1164, 1317, 1358, 1512, 1552, 1746, 1756, 2016, 2037, 2328, 2619, 2634, 2716, 3024, 3073, 3104, 3492, 3512, 3951, 4074, 4656, 5238, 5268, 5432, 6048, 6111, 6146, 6984, 7024, 7902, 8148, 9219, 9312, 10476, 10536, 10864, 11853, 12222, 12292, 13968, 14048, 15804, 16296, 18333, 18438, 20952, 21072, 21728, 23706, 24444, 24584, 27657, 27936, 31608, 32592, 36666, 36876, 41904, 42144, 42583, 47412, 48888, 49168, 55314, 63216, 65184, 73332, 73752, 82971, 83808, 85166, 94824, 97776, 98336, 110628, 126432, 127749, 146664, 147504, 165942, 170332, 189648, 195552, 221256, 255498, 293328, 295008, 298081, 331884, 340664, 379296, 383247, 442512, 510996, 586656, 596162, 663768, 681328, 766494, 885024, 894243, 1021992, 1149741, 1192324, 1327536, 1362656, 1532988, 1788486, 2043984, 2299482, 2384648, 2655072, 2682729, 3065976, 3576972, 4087968, 4598964, 4769296, 5365458, 6131952, 7153944, 8048187, 9197928, 9538592, 10730916, 12263904, 14307888, 16096374, 18395856, 21461832, 28615776, 32192748, 36791712, 42923664, 64385496, 85847328, 128770992, 257541984]

約数ペア:

[(1, 257541984), (2, 128770992), (3, 85847328), (4, 64385496), (6, 42923664), (7, 36791712), (8, 32192748), (9, 28615776), (12, 21461832), (14, 18395856), (16, 16096374), (18, 14307888), (21, 12263904), (24, 10730916), (27, 9538592), (28, 9197928), (32, 8048187), (36, 7153944), (42, 6131952), (48, 5365458), (54, 4769296), (56, 4598964), (63, 4087968), (72, 3576972), (84, 3065976), (96, 2682729), (97, 2655072), (108, 2384648), (112, 2299482), (126, 2043984), (144, 1788486), (168, 1532988), (189, 1362656), (194, 1327536), (216, 1192324), (224, 1149741), (252, 1021992), (288, 894243), (291, 885024), (336, 766494), (378, 681328), (388, 663768), (432, 596162), (439, 586656), (504, 510996), (582, 442512), (672, 383247), (679, 379296), (756, 340664), (776, 331884), (864, 298081), (873, 295008), (878, 293328), (1008, 255498), (1164, 221256), (1317, 195552), (1358, 189648), (1512, 170332), (1552, 165942), (1746, 147504), (1756, 146664), (2016, 127749), (2037, 126432), (2328, 110628), (2619, 98336), (2634, 97776), (2716, 94824), (3024, 85166), (3073, 83808), (3104, 82971), (3492, 73752), (3512, 73332), (3951, 65184), (4074, 63216), (4656, 55314), (5238, 49168), (5268, 48888), (5432, 47412), (6048, 42583), (6111, 42144), (6146, 41904), (6984, 36876), (7024, 36666), (7902, 32592), (8148, 31608), (9219, 27936), (9312, 27657), (10476, 24584), (10536, 24444), (10864, 23706), (11853, 21728), (12222, 21072), (12292, 20952), (13968, 18438), (14048, 18333), (15804, 16296)]