257317344

素因数分解:

$2^5\times 3^3\times {\mathrm{431}}^1\times {\mathrm{691}}^1$

素因数の和:1141

約数の個数: 96

約数和(自身を含む): 753338880

約数和(自身を除く): 496021536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 96, 108, 144, 216, 288, 431, 432, 691, 862, 864, 1293, 1382, 1724, 2073, 2586, 2764, 3448, 3879, 4146, 5172, 5528, 6219, 6896, 7758, 8292, 10344, 11056, 11637, 12438, 13792, 15516, 16584, 18657, 20688, 22112, 23274, 24876, 31032, 33168, 37314, 41376, 46548, 49752, 62064, 66336, 74628, 93096, 99504, 124128, 149256, 186192, 199008, 297821, 298512, 372384, 595642, 597024, 893463, 1191284, 1786926, 2382568, 2680389, 3573852, 4765136, 5360778, 7147704, 8041167, 9530272, 10721556, 14295408, 16082334, 21443112, 28590816, 32164668, 42886224, 64329336, 85772448, 128658672, 257317344]

約数ペア:

[(1, 257317344), (2, 128658672), (3, 85772448), (4, 64329336), (6, 42886224), (8, 32164668), (9, 28590816), (12, 21443112), (16, 16082334), (18, 14295408), (24, 10721556), (27, 9530272), (32, 8041167), (36, 7147704), (48, 5360778), (54, 4765136), (72, 3573852), (96, 2680389), (108, 2382568), (144, 1786926), (216, 1191284), (288, 893463), (431, 597024), (432, 595642), (691, 372384), (862, 298512), (864, 297821), (1293, 199008), (1382, 186192), (1724, 149256), (2073, 124128), (2586, 99504), (2764, 93096), (3448, 74628), (3879, 66336), (4146, 62064), (5172, 49752), (5528, 46548), (6219, 41376), (6896, 37314), (7758, 33168), (8292, 31032), (10344, 24876), (11056, 23274), (11637, 22112), (12438, 20688), (13792, 18657), (15516, 16584)]