257027328

素因数分解:

$2^8\times 3^2\times {\mathrm{281}}^1\times {\mathrm{397}}^1$

素因数の和:700

約数の個数: 108

約数和(自身を含む): 745583748

約数和(自身を除く): 488556420

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 128, 144, 192, 256, 281, 288, 384, 397, 562, 576, 768, 794, 843, 1124, 1152, 1191, 1588, 1686, 2248, 2304, 2382, 2529, 3176, 3372, 3573, 4496, 4764, 5058, 6352, 6744, 7146, 8992, 9528, 10116, 12704, 13488, 14292, 17984, 19056, 20232, 25408, 26976, 28584, 35968, 38112, 40464, 50816, 53952, 57168, 71936, 76224, 80928, 101632, 107904, 111557, 114336, 152448, 161856, 215808, 223114, 228672, 304896, 323712, 334671, 446228, 457344, 647424, 669342, 892456, 914688, 1004013, 1338684, 1784912, 2008026, 2677368, 3569824, 4016052, 5354736, 7139648, 8032104, 10709472, 14279296, 16064208, 21418944, 28558592, 32128416, 42837888, 64256832, 85675776, 128513664, 257027328]

約数ペア:

[(1, 257027328), (2, 128513664), (3, 85675776), (4, 64256832), (6, 42837888), (8, 32128416), (9, 28558592), (12, 21418944), (16, 16064208), (18, 14279296), (24, 10709472), (32, 8032104), (36, 7139648), (48, 5354736), (64, 4016052), (72, 3569824), (96, 2677368), (128, 2008026), (144, 1784912), (192, 1338684), (256, 1004013), (281, 914688), (288, 892456), (384, 669342), (397, 647424), (562, 457344), (576, 446228), (768, 334671), (794, 323712), (843, 304896), (1124, 228672), (1152, 223114), (1191, 215808), (1588, 161856), (1686, 152448), (2248, 114336), (2304, 111557), (2382, 107904), (2529, 101632), (3176, 80928), (3372, 76224), (3573, 71936), (4496, 57168), (4764, 53952), (5058, 50816), (6352, 40464), (6744, 38112), (7146, 35968), (8992, 28584), (9528, 26976), (10116, 25408), (12704, 20232), (13488, 19056), (14292, 17984)]